EP1949478A2 - Membran für brennstoffzellen, enthaltend polymere, die phosphonsäure- und/oder sulfonsäuregruppen umfassen, membran-elektroden-einheit und deren anwendung in brennstoffzellen - Google Patents
Membran für brennstoffzellen, enthaltend polymere, die phosphonsäure- und/oder sulfonsäuregruppen umfassen, membran-elektroden-einheit und deren anwendung in brennstoffzellenInfo
- Publication number
- EP1949478A2 EP1949478A2 EP06806595A EP06806595A EP1949478A2 EP 1949478 A2 EP1949478 A2 EP 1949478A2 EP 06806595 A EP06806595 A EP 06806595A EP 06806595 A EP06806595 A EP 06806595A EP 1949478 A2 EP1949478 A2 EP 1949478A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- acid groups
- monomers
- sulfonic acid
- phosphonic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 123
- 229920000642 polymer Polymers 0.000 title claims abstract description 107
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 125000000542 sulfonic acid group Chemical group 0.000 title claims abstract description 85
- 239000000446 fuel Substances 0.000 title claims abstract description 39
- 239000000178 monomer Substances 0.000 claims abstract description 134
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 22
- -1 ethyleneoxy group Chemical group 0.000 claims description 134
- 125000003118 aryl group Chemical group 0.000 claims description 45
- 125000001072 heteroaryl group Chemical group 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 36
- 238000006116 polymerization reaction Methods 0.000 claims description 34
- 229910052736 halogen Inorganic materials 0.000 claims description 29
- 150000002367 halogens Chemical group 0.000 claims description 29
- 229920005597 polymer membrane Polymers 0.000 claims description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims description 23
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 23
- 239000001257 hydrogen Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- 125000006732 (C1-C15) alkyl group Chemical group 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000004132 cross linking Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 230000008961 swelling Effects 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 8
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 claims description 8
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 8
- 125000005529 alkyleneoxy group Chemical group 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 229920006254 polymer film Polymers 0.000 claims description 7
- 229920002554 vinyl polymer Polymers 0.000 claims description 7
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 125000002947 alkylene group Chemical group 0.000 claims description 6
- 150000003440 styrenes Chemical class 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 5
- GJVFBWCTGUSGDD-UHFFFAOYSA-L pentamethonium bromide Chemical compound [Br-].[Br-].C[N+](C)(C)CCCCC[N+](C)(C)C GJVFBWCTGUSGDD-UHFFFAOYSA-L 0.000 claims description 5
- UAJRSHJHFRVGMG-UHFFFAOYSA-N 1-ethenyl-4-methoxybenzene Chemical compound COC1=CC=C(C=C)C=C1 UAJRSHJHFRVGMG-UHFFFAOYSA-N 0.000 claims description 4
- WGLLSSPDPJPLOR-UHFFFAOYSA-N 2,3-dimethylbut-2-ene Chemical compound CC(C)=C(C)C WGLLSSPDPJPLOR-UHFFFAOYSA-N 0.000 claims description 4
- PGMMQIGGQSIEGH-UHFFFAOYSA-N 2-ethenyl-1,3-oxazole Chemical class C=CC1=NC=CO1 PGMMQIGGQSIEGH-UHFFFAOYSA-N 0.000 claims description 4
- JDCUKFVNOWJNBU-UHFFFAOYSA-N 2-ethenyl-1,3-thiazole Chemical class C=CC1=NC=CS1 JDCUKFVNOWJNBU-UHFFFAOYSA-N 0.000 claims description 4
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 claims description 4
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 claims description 4
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical group C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 claims description 4
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 4
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 4
- 125000005677 ethinylene group Chemical group [*:2]C#C[*:1] 0.000 claims description 4
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims description 4
- 239000001530 fumaric acid Substances 0.000 claims description 4
- GHXZPUGJZVBLGC-UHFFFAOYSA-N iodoethene Chemical compound IC=C GHXZPUGJZVBLGC-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- UIYCHXAGWOYNNA-UHFFFAOYSA-N vinyl sulfide Chemical compound C=CSC=C UIYCHXAGWOYNNA-UHFFFAOYSA-N 0.000 claims description 4
- SSZOCHFYWWVSAI-UHFFFAOYSA-N 1-bromo-2-ethenylbenzene Chemical compound BrC1=CC=CC=C1C=C SSZOCHFYWWVSAI-UHFFFAOYSA-N 0.000 claims description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 229920005604 random copolymer Polymers 0.000 claims description 3
- PPKPKFIWDXDAGC-NSCUHMNNSA-N (e)-1,2-dichloroprop-1-ene Chemical compound C\C(Cl)=C/Cl PPKPKFIWDXDAGC-NSCUHMNNSA-N 0.000 claims description 2
- NNQDMQVWOWCVEM-NSCUHMNNSA-N (e)-1-bromoprop-1-ene Chemical compound C\C=C\Br NNQDMQVWOWCVEM-NSCUHMNNSA-N 0.000 claims description 2
- CGBYBGVMDAPUIH-ONEGZZNKSA-N (e)-2,3-dimethylbut-2-enedioic acid Chemical compound OC(=O)C(/C)=C(\C)C(O)=O CGBYBGVMDAPUIH-ONEGZZNKSA-N 0.000 claims description 2
- HIILBTHBHCLUER-IWQZZHSRSA-N (z)-1,2,3-trichloroprop-1-ene Chemical compound ClC\C(Cl)=C\Cl HIILBTHBHCLUER-IWQZZHSRSA-N 0.000 claims description 2
- BZCOSCNPHJNQBP-UPHRSURJSA-N (z)-2,3-dihydroxybut-2-enedioic acid Chemical compound OC(=O)C(\O)=C(\O)C(O)=O BZCOSCNPHJNQBP-UPHRSURJSA-N 0.000 claims description 2
- LIPPKMMVZOHCIF-UHFFFAOYSA-N 1,1,2-trichloroprop-1-ene Chemical compound CC(Cl)=C(Cl)Cl LIPPKMMVZOHCIF-UHFFFAOYSA-N 0.000 claims description 2
- ZAIDIVBQUMFXEC-UHFFFAOYSA-N 1,1-dichloroprop-1-ene Chemical compound CC=C(Cl)Cl ZAIDIVBQUMFXEC-UHFFFAOYSA-N 0.000 claims description 2
- JVPKLOPETWVKQD-UHFFFAOYSA-N 1,2,2-tribromoethenylbenzene Chemical class BrC(Br)=C(Br)C1=CC=CC=C1 JVPKLOPETWVKQD-UHFFFAOYSA-N 0.000 claims description 2
- WGGLDBIZIQMEGH-UHFFFAOYSA-N 1-bromo-4-ethenylbenzene Chemical compound BrC1=CC=C(C=C)C=C1 WGGLDBIZIQMEGH-UHFFFAOYSA-N 0.000 claims description 2
- BOVQCIDBZXNFEJ-UHFFFAOYSA-N 1-chloro-3-ethenylbenzene Chemical compound ClC1=CC=CC(C=C)=C1 BOVQCIDBZXNFEJ-UHFFFAOYSA-N 0.000 claims description 2
- KTZVZZJJVJQZHV-UHFFFAOYSA-N 1-chloro-4-ethenylbenzene Chemical compound ClC1=CC=C(C=C)C=C1 KTZVZZJJVJQZHV-UHFFFAOYSA-N 0.000 claims description 2
- OZCMOJQQLBXBKI-UHFFFAOYSA-N 1-ethenoxy-2-methylpropane Chemical compound CC(C)COC=C OZCMOJQQLBXBKI-UHFFFAOYSA-N 0.000 claims description 2
- QIUCYKBVFAPWRR-UHFFFAOYSA-N 1-ethenoxy-3-methylbutane Chemical compound CC(C)CCOC=C QIUCYKBVFAPWRR-UHFFFAOYSA-N 0.000 claims description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 2
- BDHGFCVQWMDIQX-UHFFFAOYSA-N 1-ethenyl-2-methylimidazole Chemical compound CC1=NC=CN1C=C BDHGFCVQWMDIQX-UHFFFAOYSA-N 0.000 claims description 2
- VKVLTUQLNXVANB-UHFFFAOYSA-N 1-ethenyl-2-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1C=C VKVLTUQLNXVANB-UHFFFAOYSA-N 0.000 claims description 2
- ZJSKEGAHBAHFON-UHFFFAOYSA-N 1-ethenyl-3-fluorobenzene Chemical compound FC1=CC=CC(C=C)=C1 ZJSKEGAHBAHFON-UHFFFAOYSA-N 0.000 claims description 2
- PECUPOXPPBBFLU-UHFFFAOYSA-N 1-ethenyl-3-methoxybenzene Chemical compound COC1=CC=CC(C=C)=C1 PECUPOXPPBBFLU-UHFFFAOYSA-N 0.000 claims description 2
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 claims description 2
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 claims description 2
- LEWNYOKWUAYXPI-UHFFFAOYSA-N 1-ethenylpiperidine Chemical compound C=CN1CCCCC1 LEWNYOKWUAYXPI-UHFFFAOYSA-N 0.000 claims description 2
- UDJZTGMLYITLIQ-UHFFFAOYSA-N 1-ethenylpyrrolidine Chemical compound C=CN1CCCC1 UDJZTGMLYITLIQ-UHFFFAOYSA-N 0.000 claims description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 2
- CISIJYCKDJSTMX-UHFFFAOYSA-N 2,2-dichloroethenylbenzene Chemical class ClC(Cl)=CC1=CC=CC=C1 CISIJYCKDJSTMX-UHFFFAOYSA-N 0.000 claims description 2
- OWWIWYDDISJUMY-UHFFFAOYSA-N 2,3-dimethylbut-1-ene Chemical compound CC(C)C(C)=C OWWIWYDDISJUMY-UHFFFAOYSA-N 0.000 claims description 2
- YMOONIIMQBGTDU-UHFFFAOYSA-N 2-bromoethenylbenzene Chemical class BrC=CC1=CC=CC=C1 YMOONIIMQBGTDU-UHFFFAOYSA-N 0.000 claims description 2
- PHMRPWPDDRGGGF-UHFFFAOYSA-N 2-bromoprop-1-ene Chemical compound CC(Br)=C PHMRPWPDDRGGGF-UHFFFAOYSA-N 0.000 claims description 2
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical class ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 claims description 2
- PNLQPWWBHXMFCA-UHFFFAOYSA-N 2-chloroprop-1-ene Chemical compound CC(Cl)=C PNLQPWWBHXMFCA-UHFFFAOYSA-N 0.000 claims description 2
- ISRGONDNXBCDBM-UHFFFAOYSA-N 2-chlorostyrene Chemical compound ClC1=CC=CC=C1C=C ISRGONDNXBCDBM-UHFFFAOYSA-N 0.000 claims description 2
- GNUGVECARVKIPH-UHFFFAOYSA-N 2-ethenoxypropane Chemical compound CC(C)OC=C GNUGVECARVKIPH-UHFFFAOYSA-N 0.000 claims description 2
- QQBUHYQVKJQAOB-UHFFFAOYSA-N 2-ethenylfuran Chemical compound C=CC1=CC=CO1 QQBUHYQVKJQAOB-UHFFFAOYSA-N 0.000 claims description 2
- XIXWTBLGKIRXOP-UHFFFAOYSA-N 2-ethenyloxolane Chemical compound C=CC1CCCO1 XIXWTBLGKIRXOP-UHFFFAOYSA-N 0.000 claims description 2
- ZDHWTWWXCXEGIC-UHFFFAOYSA-N 2-ethenylpyrimidine Chemical compound C=CC1=NC=CC=N1 ZDHWTWWXCXEGIC-UHFFFAOYSA-N 0.000 claims description 2
- YQGVJKSRGWEXGU-UHFFFAOYSA-N 2-ethenylthiolane Chemical compound C=CC1CCCS1 YQGVJKSRGWEXGU-UHFFFAOYSA-N 0.000 claims description 2
- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical compound CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 claims description 2
- UAPZPQSCIKHHSX-UHFFFAOYSA-N 2-methyloxirene Chemical compound CC1=CO1 UAPZPQSCIKHHSX-UHFFFAOYSA-N 0.000 claims description 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 claims description 2
- ORNUPNRNNSVZTC-UHFFFAOYSA-N 2-vinylthiophene Chemical compound C=CC1=CC=CS1 ORNUPNRNNSVZTC-UHFFFAOYSA-N 0.000 claims description 2
- VKEIPALYOJMDAC-UHFFFAOYSA-N 3,3,3-trichloroprop-1-ene Chemical compound ClC(Cl)(Cl)C=C VKEIPALYOJMDAC-UHFFFAOYSA-N 0.000 claims description 2
- PKXHXOTZMFCXSH-UHFFFAOYSA-N 3,3-dimethylbut-1-ene Chemical compound CC(C)(C)C=C PKXHXOTZMFCXSH-UHFFFAOYSA-N 0.000 claims description 2
- VIRDQWZTIAVLSE-UHFFFAOYSA-N 3-ethenyl-9h-carbazole Chemical compound C1=CC=C2C3=CC(C=C)=CC=C3NC2=C1 VIRDQWZTIAVLSE-UHFFFAOYSA-N 0.000 claims description 2
- DPZYLEIWHTWHCU-UHFFFAOYSA-N 3-ethenylpyridine Chemical compound C=CC1=CC=CN=C1 DPZYLEIWHTWHCU-UHFFFAOYSA-N 0.000 claims description 2
- UIRSDPGHIARUJZ-UHFFFAOYSA-N 3-ethenylpyrrolidine Chemical compound C=CC1CCNC1 UIRSDPGHIARUJZ-UHFFFAOYSA-N 0.000 claims description 2
- DHNFGUDLVOSIKJ-UHFFFAOYSA-N 3-methyl-1-(3-methylbuta-1,3-dienoxy)buta-1,3-diene Chemical class CC(=C)C=COC=CC(C)=C DHNFGUDLVOSIKJ-UHFFFAOYSA-N 0.000 claims description 2
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 claims description 2
- ZLPORNPZJNRGCO-UHFFFAOYSA-N 3-methylpyrrole-2,5-dione Chemical compound CC1=CC(=O)NC1=O ZLPORNPZJNRGCO-UHFFFAOYSA-N 0.000 claims description 2
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 2
- DMAYBPBPEUFIHJ-UHFFFAOYSA-N 4-bromobut-1-ene Chemical compound BrCCC=C DMAYBPBPEUFIHJ-UHFFFAOYSA-N 0.000 claims description 2
- AXSCUMTZULTSIN-UHFFFAOYSA-N 4-ethenyl-3-ethylpyridine Chemical compound CCC1=CN=CC=C1C=C AXSCUMTZULTSIN-UHFFFAOYSA-N 0.000 claims description 2
- JBENUYBOHNHXIU-UHFFFAOYSA-N 4-ethenyl-9h-carbazole Chemical compound N1C2=CC=CC=C2C2=C1C=CC=C2C=C JBENUYBOHNHXIU-UHFFFAOYSA-N 0.000 claims description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims description 2
- BMKFFLPVJHCPDD-UHFFFAOYSA-N 5-chloro-5-ethenylcyclohexa-1,3-diene Chemical compound C=CC1(Cl)CC=CC=C1 BMKFFLPVJHCPDD-UHFFFAOYSA-N 0.000 claims description 2
- LKLNVHRUXQQEII-UHFFFAOYSA-N 5-ethenyl-2,3-dimethylpyridine Chemical compound CC1=CC(C=C)=CN=C1C LKLNVHRUXQQEII-UHFFFAOYSA-N 0.000 claims description 2
- VJOWMORERYNYON-UHFFFAOYSA-N 5-ethenyl-2-methylpyridine Chemical compound CC1=CC=C(C=C)C=N1 VJOWMORERYNYON-UHFFFAOYSA-N 0.000 claims description 2
- OUVFWIHVZPQHJF-UHFFFAOYSA-N 5-ethenyl-5-methylcyclohexa-1,3-diene Chemical compound C=CC1(C)CC=CC=C1 OUVFWIHVZPQHJF-UHFFFAOYSA-N 0.000 claims description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 claims description 2
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 claims description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 2
- XHXZBCFAQZKILF-UHFFFAOYSA-N O=C1NC(=O)C=C1.O=C1NC(=O)C=C1 Chemical compound O=C1NC(=O)C=C1.O=C1NC(=O)C=C1 XHXZBCFAQZKILF-UHFFFAOYSA-N 0.000 claims description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- HFBMWMNUJJDEQZ-UHFFFAOYSA-N acryloyl chloride Chemical compound ClC(=O)C=C HFBMWMNUJJDEQZ-UHFFFAOYSA-N 0.000 claims description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 2
- JRXXLCKWQFKACW-UHFFFAOYSA-N biphenylacetylene Chemical group C1=CC=CC=C1C#CC1=CC=CC=C1 JRXXLCKWQFKACW-UHFFFAOYSA-N 0.000 claims description 2
- RSRICHZMFPHXLE-AATRIKPKSA-N bis(2-methylpropyl) (e)-but-2-enedioate Chemical compound CC(C)COC(=O)\C=C\C(=O)OCC(C)C RSRICHZMFPHXLE-AATRIKPKSA-N 0.000 claims description 2
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical class BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 claims description 2
- SQHOHKQMTHROSF-UHFFFAOYSA-N but-1-en-2-ylbenzene Chemical compound CCC(=C)C1=CC=CC=C1 SQHOHKQMTHROSF-UHFFFAOYSA-N 0.000 claims description 2
- IEPRKVQEAMIZSS-AATRIKPKSA-N diethyl fumarate Chemical compound CCOC(=O)\C=C\C(=O)OCC IEPRKVQEAMIZSS-AATRIKPKSA-N 0.000 claims description 2
- LDCRTTXIJACKKU-ONEGZZNKSA-N dimethyl fumarate Chemical compound COC(=O)\C=C\C(=O)OC LDCRTTXIJACKKU-ONEGZZNKSA-N 0.000 claims description 2
- 229960004419 dimethyl fumarate Drugs 0.000 claims description 2
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 claims description 2
- NHOGGUYTANYCGQ-UHFFFAOYSA-N ethenoxybenzene Chemical compound C=COC1=CC=CC=C1 NHOGGUYTANYCGQ-UHFFFAOYSA-N 0.000 claims description 2
- LDLDYFCCDKENPD-UHFFFAOYSA-N ethenylcyclohexane Chemical compound C=CC1CCCCC1 LDLDYFCCDKENPD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000578 graft copolymer Polymers 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- KKFHAJHLJHVUDM-UHFFFAOYSA-N n-vinylcarbazole Chemical compound C1=CC=C2N(C=C)C3=CC=CC=C3C2=C1 KKFHAJHLJHVUDM-UHFFFAOYSA-N 0.000 claims description 2
- SFBTTWXNCQVIEC-UHFFFAOYSA-N o-Vinylanisole Chemical compound COC1=CC=CC=C1C=C SFBTTWXNCQVIEC-UHFFFAOYSA-N 0.000 claims description 2
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 claims description 2
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 2
- 229920001567 vinyl ester resin Polymers 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 3
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- 125000000753 cycloalkyl group Chemical group 0.000 description 1
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- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- 150000002576 ketones Chemical class 0.000 description 1
- FEDFHMISXKDOJI-UHFFFAOYSA-M lithium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F FEDFHMISXKDOJI-UHFFFAOYSA-M 0.000 description 1
- VAXNCPZUCRECEW-UHFFFAOYSA-M lithium;1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F VAXNCPZUCRECEW-UHFFFAOYSA-M 0.000 description 1
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- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 1
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- 230000008092 positive effect Effects 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- LVTHXRLARFLXNR-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F LVTHXRLARFLXNR-UHFFFAOYSA-M 0.000 description 1
- RSCGQEBKFSGWJT-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F RSCGQEBKFSGWJT-UHFFFAOYSA-M 0.000 description 1
- GLGXXYFYZWQGEL-UHFFFAOYSA-M potassium;trifluoromethanesulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)F GLGXXYFYZWQGEL-UHFFFAOYSA-M 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- POSICDHOUBKJKP-UHFFFAOYSA-N prop-2-enoxybenzene Chemical compound C=CCOC1=CC=CC=C1 POSICDHOUBKJKP-UHFFFAOYSA-N 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- UEONEAPMPJEGDO-UHFFFAOYSA-N prop-2-enylcyanamide Chemical compound C=CCNC#N UEONEAPMPJEGDO-UHFFFAOYSA-N 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
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- BWESROVQGZSBRX-UHFFFAOYSA-N pyrido[3,2-d]pyrimidine Chemical compound C1=NC=NC2=CC=CN=C21 BWESROVQGZSBRX-UHFFFAOYSA-N 0.000 description 1
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- 150000004760 silicates Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 1
- 229940082004 sodium laurate Drugs 0.000 description 1
- QBJDFZSOZNDVDE-UHFFFAOYSA-M sodium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F QBJDFZSOZNDVDE-UHFFFAOYSA-M 0.000 description 1
- WXNIEINRHBIHRE-UHFFFAOYSA-M sodium;1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WXNIEINRHBIHRE-UHFFFAOYSA-M 0.000 description 1
- XGPOMXSYOKFBHS-UHFFFAOYSA-M sodium;trifluoromethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(F)(F)F XGPOMXSYOKFBHS-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- WYKYCHHWIJXDAO-UHFFFAOYSA-N tert-butyl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)C WYKYCHHWIJXDAO-UHFFFAOYSA-N 0.000 description 1
- PFBLRDXPNUJYJM-UHFFFAOYSA-N tert-butyl 2-methylpropaneperoxoate Chemical compound CC(C)C(=O)OOC(C)(C)C PFBLRDXPNUJYJM-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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- 239000002562 thickening agent Substances 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- PGOMVYSURVZIIW-UHFFFAOYSA-N trifluoro(nitroso)methane Chemical compound FC(F)(F)N=O PGOMVYSURVZIIW-UHFFFAOYSA-N 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
- H01M8/1072—Polymeric electrolyte materials characterised by the manufacturing processes by chemical reactions, e.g. in situ polymerisation or in situ crosslinking
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
- C08J5/2243—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds obtained by introduction of active groups capable of ion-exchange into compounds of the type C08J5/2231
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0289—Means for holding the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1025—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/103—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1067—Polymeric electrolyte materials characterised by their physical properties, e.g. porosity, ionic conductivity or thickness
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/14—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2343/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Derivatives of such polymers
- C08J2343/02—Homopolymers or copolymers of monomers containing phosphorus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a membrane for fuel cells containing polymers comprising phosphonic acid and / or sulfonic acid groups, membrane electrode assemblies and their application in fuel cells.
- polymer electrolyte membranes have been developed with complexes of, for example, basic polymers and strong acids. So describes
- WO96 / 13872 and the corresponding US Pat. No. 5,525,436 describe a process for producing a proton-conducting polymer electrolyte membrane in which a basic polymer such as polybenzimidazole is treated with a strong acid such as phosphoric acid, sulfuric acid, etc.
- the mineral acid usually concentrated phosphoric acid
- the polymer serves as a carrier for the electrolyte consisting of the highly concentrated phosphoric acid.
- the polymer membrane fulfills further essential functions in particular, it must have a high mechanical stability and serve as a separator for the fuels.
- Polymer electrolyte membrane is used, can be operated at temperatures above 100 ° C without otherwise necessary humidification of the fuels. This is due to the property of phosphoric acid, the protons without to be able to transport additional water by means of the so-called Grotthus mechanism (K.-D. Kreuer, Chem. Mater., 1996, 8, 610-641).
- ⁇ 100 ° C is less than 100 ppm. However, at temperatures in the range 150-200 ° C, 10000 ppm CO or more can be tolerated (N.J. Bjerrum et al., Journal of Applied Electrochemistry, 2001, 31, 773-779). This leads to significant simplifications of the upstream reforming process and thus to cost reductions of the entire fuel cell system.
- a big advantage of fuel cells is the fact that in the electrochemical reaction the energy of the fuel is directly converted into electrical energy and heat.
- the reaction product is formed at the cathode water.
- the by-product of the electrochemical reaction is heat.
- some of the heat generated during the reaction must be dissipated to avoid overheating the system. For cooling then additional, energy-consuming
- Equipment necessary that further reduce the overall electrical efficiency of the fuel cell system.
- the heat can be efficiently dissipated by existing technologies, such as solar heating.
- Use heat exchanger To increase the efficiency of high temperatures are sought. If the operating temperature above 100 ° C and the temperature difference between the ambient temperature and the operating temperature is high, it is possible to cool the fuel cell system more efficient or to use small cooling surfaces and to dispense with additional devices compared to fuel cells, due to the membrane humidification under 100 ° C must be operated.
- phosphoric acid-doped membranes are relatively expensive, since it is customary first to form a polymer, which is then cast into a film with the aid of a solvent. After the film has been dried, it is doped with an acid in a last step.
- the polymer membranes known hitherto have a high content of dimethylacetamide (DMAc) which can not be completely removed by means of known drying methods.
- DMAc dimethylacetamide
- the present invention is therefore based on the object to provide a novel polymer electrolyte membrane, which achieves the objects set out above.
- a membrane according to the invention should be inexpensive and easy to manufacture.
- the membrane should be suitable to be processed into a membrane-electrode unit that can deliver very high power densities.
- a membrane electrode unit obtainable via the membrane according to the invention should have a particularly high durability, in particular a long service life at high power densities.
- Another object of the invention was to provide a membrane which can be compressed to a membrane-electrode assembly and the fuel cell can be operated with low stoichiometries, with low gas flow and / or at low pressure at high power density.
- the range of operating temperature of less than 20 ° C can be extended to over 12O ° C without the life of the fuel cell would be greatly reduced.
- a membrane for fuel cells comprising polymers comprising phosphonic acid and / or sulfonic acid groups, having all the features of claim 1.
- the present invention is a membrane for fuel cells, comprising polymers comprising phosphonic acid and / or sulfonic acid groups, characterized in that the polymer comprising phosphonic and / or sulfonic acid groups by copolymerization of monomers comprising phosphonic acid and / or sulfonic acid groups, and hydrophobic monomers is available.
- a membrane of the invention shows over a wide temperature range, a high conductivity, which can be achieved without additional humidification. Furthermore, a membrane according to the invention can be produced simply and inexpensively. For example, it is possible to dispense with large amounts of expensive solvents, such as dimethylacetamide or expensive processes with polyphosphoric acid.
- these membranes show a surprisingly long life. Furthermore, a fuel cell which is equipped with a membrane according to the invention, even at low temperatures, for example, be operated at 80 ° C, without thereby reducing the lifetime of the fuel cell is greatly reduced.
- the membrane can be processed into a membrane-electrode unit, which can deliver particularly high currents.
- a membrane-electrode unit thus obtained has a particularly high durability, in particular a long life at high currents.
- the membrane of the present invention can be converted into a membrane-electrode assembly having high performance even with a very low content of catalytically active substances such as platinum, ruthenium or palladium.
- the polymer membrane of the invention comprises polymers comprising phosphonic acid and / or sulfonic acid groups obtainable by polymerization of monomers comprising phosphonic acid groups and / or monomers comprising sulfonic acid groups.
- the polymers comprising phosphonic acid and / or sulfonic acid groups may have repeating units derived from monomers comprising phosphonic acid groups without the polymer having repeating units derived from monomers comprising sulfonic acid groups. Furthermore, the polymers comprising phosphonic acid and / or sulfonic acid groups may have repeating units derived from monomers comprising sulfonic acid groups without the polymer having repeating units derived from phosphonic acid group-containing monomers. In addition, the
- Polymers comprising phosphonic acid and / or sulfonic acid repeating units derived from monomers comprising phosphonic acid groups, and repeating units derived from monomers comprising sulfonic acid groups.
- Preferred polymers comprising phosphonic acid and / or sulfonic acid groups are those which
- Monomers comprising phosphonic acid groups are known in the art. These are compounds which have at least one carbon-carbon double bond and at least one phosphonic acid group. Preferably, the two carbon atoms that form the carbon-carbon double bond have at least two, preferably three, bonds to groups that result in little steric hindrance of the double bond. These groups include, among others, hydrogen atoms and halogen atoms, especially fluorine atoms.
- the polymer comprising phosphonic acid groups results from the polymerization product which is obtained by polymerization of the monomer comprising phosphonic acid groups alone or with further monomers and / or crosslinkers.
- the monomer comprising phosphonic acid groups may comprise one, two, three or more carbon-carbon double bonds. Furthermore, the monomer comprising phosphonic acid groups may contain one, two, three or more phosphonic acid groups.
- the monomer comprising phosphonic acid groups contains 2 to 20, preferably 2 to 10, carbon atoms.
- the monomer comprising phosphonic acid groups are preferably compounds of the formula
- R represents a bond, a C1-C15 divalent alkylene group, C1-C15 divalent alkyleneoxy group, for example ethyleneoxy group or C5-C20 double aryl or heteroaryl group, the above radicals themselves being halogen, -OH, COOZ, -CN, NZ 2 can be substituted,
- Z independently of one another hydrogen, C1-C15-alkyl group, C1-C15-
- Alkoxy group ethyleneoxy group or C5-C20-aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8 , 9 or 10, y is an integer 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 and / or the formula
- R is a bond, a C1-C15 double-alkylene group, C1-C15 double-alkyleneoxy group, for example ethyleneoxy group or C5 double-bonded
- C20-aryl or heteroaryl group where the above radicals in turn may be substituted by halogen, -OH, COOZ, -CN, NZ 2 , Z are independently hydrogen, C1-C15-alkyl group, C1 -C15-
- Alkoxy group ethyleneoxy group or C5-C20-aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8 , 9 or 10 means and / or the formula wherein
- A represents a group of the formulas COOR 2 , CN, CONR 2 2) OR 2 and / or R 2 , wherein R 2 is hydrogen, a C 1 -C 15 alkyl group, C 1 -C 15 alkoxy group, ethyleneoxy group or C 5 -C 20 aryl or heteroaryl group in which the above radicals may in turn be substituted by halogen, -OH, COOZ, -CN, NZ 2 R is a bond, a divalent C 1 -C 15 -alkylene group, divalent C 1 -C 15-
- Alkyleneoxy group for example, ethyleneoxy group or C5-C20 double-aryl or heteroaryl group, wherein the above radicals in turn may be substituted by halogen, -OH, COOZ, -CN, NZ 2 , Z are independently hydrogen, C1-C15 alkyl group, C1 C15
- Alkoxy group ethyleneoxy group or C5-C20-aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8 , 9 or 10 means.
- the monomers comprising preferred phosphonic acid groups are, inter alia, alkenes having phosphonic acid groups, such as ethenephosphonic acid, propenephosphonic acid, butenephosphonic acid; Acrylic acid and / or methacrylic acid compounds having phosphonic acid groups such as 2-phosphonomethylacrylic acid, 2-phosphonomethylmethacrylic acid, 2-phosphonomethylacrylamide, 2-phosphonomethylmethacrylamide and 2-acrylamido-2-methyl-1 -propanphosphonklare.
- alkenes having phosphonic acid groups such as ethenephosphonic acid, propenephosphonic acid, butenephosphonic acid
- Acrylic acid and / or methacrylic acid compounds having phosphonic acid groups such as 2-phosphonomethylacrylic acid, 2-phosphonomethylmethacrylic acid, 2-phosphonomethylacrylamide, 2-phosphonomethylmethacrylamide and 2-acrylamido-2-methyl-1 -propanphosphonklare.
- vinylphosphonic acid ethenphosphonic acid
- ethenphosphonic acid such as is obtainable, for example, from Aldrich or Clariant GmbH
- a preferred vinylphosphonic acid has a purity of more than 70%, in particular 90% and particularly preferably more than 97% purity.
- the monomers comprising phosphonic acid groups can furthermore also be used in the form of derivatives which can subsequently be converted into the acid, wherein the conversion to the acid can also take place in the polymerized state.
- These derivatives include, in particular, the salts, the esters, the amides and the halides of the monomers comprising phosphonic acid groups.
- Monomers comprising sulfonic acid groups are known in the art. These are compounds which have at least one carbon-carbon double bond and at least one sulfonic acid group.
- the two carbon atoms that form the carbon-carbon double bond have at least two, preferably three, bonds to groups that result in little steric hindrance of the double bond.
- the polymer comprising sulfonic acid groups results from the polymerization product which is obtained by polymerization of the monomers comprising sulfonic acid groups alone or with further monomers and / or crosslinkers.
- the monomer comprising sulfonic acid groups may comprise one, two, three or more carbon-carbon double bonds. Furthermore, the monomer comprising sulfonic acid groups may be one, two, three or more
- the monomer comprising sulfonic acid groups contains 2 to 20, preferably 2 to 10, carbon atoms.
- the monomer comprising sulfonic acid groups are preferably compounds of the formula
- R is a bond, a C1-C15 double-alkylene group, C1-C15 double-alkyleneoxy group, for example ethyleneoxy group or C5 double-bonded
- C20-aryl or heteroaryl group where the above radicals in turn may be substituted by halogen, -OH, COOZ, -CN, NZ 2 , Z are independently hydrogen, C1-C15-alkyl group, C1 -C15-
- Alkoxy group ethyleneoxy group or C5-C20-aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8 , 9 or 10, y is an integer 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10
- R represents a bond, a C1-C15 divalent alkylene group, C1-C15 divalent alkyleneoxy group, for example ethyleneoxy group or C5-C20 double aryl or heteroaryl group, the above radicals themselves being halogen, -OH, COOZ, -CN, NZ 2 can be substituted,
- Z independently of one another hydrogen, C1-C15-alkyl group, C1-C15-
- Alkoxy group ethyleneoxy group or C5-C20-aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8 , 9 or 10 means
- A represents a group of the formulas COOR 2 , CN, CONR 2 2 , OR 2 and / or R 2 , wherein R 2 is hydrogen, a C 1 -C 15 alkyl group, C 1 -C 15 alkoxy group, ethyleneoxy group or C 5 -C 20 aryl or Heteroaryl group, where the above radicals may in turn be substituted by halogen, -OH, COOZ, -CN, NZ 2 R is a bond, a divalent C 1 -C 15 -alkylene group, divalent C 1 -C 15-
- Alkyleneoxy group for example, ethyleneoxy group or C5-C20 double-aryl or heteroaryl group, wherein the above radicals in turn may be substituted by halogen, -OH, COOZ, -CN, NZ 2 , Z are independently hydrogen, C1-C15 alkyl group, C1 C 1-5 alkoxy group, ethyleneoxy group or C 5 -C 20 aryl or heteroaryl group, where the above radicals may themselves be substituted by halogen, -OH, -CN, and x is an integer 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 means.
- Included among the preferred monomers comprising sulfonic acid include alkenes having sulfonic acid groups, such as ethene sulfonic acid, propylene sulfonic acid, butene sulfonic acid; Acrylic acid and / or methacrylic acid compounds having sulfonic acid groups, such as, for example, 2-sulfonomethylacrylic acid, 2-sulfonomethylmethacrylic acid, 2-sulfonomethyl- acrylamide, 2-sulfonomethyl-methacrylamide and 2-acrylamido-2-methyl-1-propanesulfonic acid.
- alkenes having sulfonic acid groups such as ethene sulfonic acid, propylene sulfonic acid, butene sulfonic acid
- Acrylic acid and / or methacrylic acid compounds having sulfonic acid groups such as, for example, 2-sulfonomethylacrylic acid, 2-sulfonomethylmethacrylic
- vinyl sulfonic acid ethene sulfonic acid
- a preferred vinylsulfonic acid has a purity of more than 70%, in particular 90% and particularly preferably more than 97% purity.
- the monomers comprising sulfonic acid groups can furthermore also be used in the form of derivatives, which can then be converted into the acid, wherein the conversion to the acid can also take place in the polymerized state.
- derivatives include, in particular, the salts, the esters, the amides and the halides of the monomers comprising sulfonic acid groups.
- Weight ratio of monomers comprising sulfonic acid to monomers comprising phosphonic acid groups in the range of 100: 1 to 1: 100, preferably 10: 1 to 1: 10 and particularly preferably 2: 1 to 1: 2.
- Hydrophobic monomers to be used according to the invention are known per se in the art.
- Hydrophobic monomers refer to monomers which have a solubility in water at 25 ° C of at most 5 g / l, preferably at most 1 g / l, and differ from the monomers comprising sulfonic acid groups and monomers comprising phosphonic acid groups. These monomers can be copolymerized with the monomers and / or monomers comprising phosphonic acid groups as described above.
- 1-alkenes such as ethylene, 1,1-diphenylethylene, propene, 2-methyl-propene, 1-butene, 2,3-dimethyl-1-butene, 3,3-dimethyl-1-butene, 2-methyl-1-butene , 3-methyl-1-butene, 2-
- Butene 2,3-dimethyl-2-butene, hexene-1, heptene-1; branched alkenes such as vinylcyclohexane, 3,3-dimethyl-1-propene, 3-methyl-1-diisobutylene, 4-methylpentene-1;
- Acetylene monomers such as acetylene, diphenylacetylene, phenylacetylene;
- Vinyl halides such as vinyl fluoride, vinyl iodide, vinyl chlorides, such as 1-chloroethylene, 1, 1 -
- Acrylic monomers such as acrolein, 1-chloroacrolein, 2-methylacrylamide, acrylonitrile;
- Vinyl ether monomers such as vinyl butyl ether, vinyl ether, vinyl fluoride, vinyl iodide,
- Vinyl esters such as vinyl acetate
- Vinyl sulfide methyl isopropenyl; 1,2-epoxypropene;
- Styrenic monomers such as styrene, substituted styrenes having an alkyl substituent in the
- ⁇ -methylstyrene and ⁇ -ethylstyrene substituted styrenes having an alkyl substituent on the ring such as 1-methylstyrene, vinyltoluene and p-methylstyrene, halogenated styrenes such as monochlorostyrenes such as 1-chlorostyrene, 2-chlorostyrene, m-chlorostyrene, p Chlorostyrene, dichlorostyrenes, monobromostyrenes such as 2-bromostyrene, p-bromostyrene, tribromostyrenes, tetrabromostyrenes, m-fluorostyrene and o-bromostyrene.
- monochlorostyrenes such as 1-chlorostyrene, 2-chlorostyrene, m-chlorostyrene, p Chlorostyrene
- dichlorostyrenes monobromostyrenes such as 2-bro
- Fluorostyrene m-methoxystyrene, o-methoxystyrene, p-methoxystyrene, 2-nitrostyrene;
- Heterocyclic vinyl compounds such as 2-vinylpyridine, 3-vinylpyridine, 2-methyl-5-vinylpyridine, 3-ethyl-4-vinylpyridine, 2,3-dimethyl-5-vinylpyridine, vinylpyrimidine, vinylpiperidine, 9-vinylcarbazole, 3-vinylcarbazole, 4-vinylcarbazole, 1-vinylimidazole, 2-methyl-1-vinylimidazole, N-vinylpyrrolidone, 2-vinylpyrrolidone, N-vinylpyrrolidine,
- Maleic acid monomers such as maleic acid, dihydroxymaleic acid, maleic anhydride, methylmaleic anhydride, dimethyl maleate, diethyl maleate, maleimide maleimide and methylmaleimide;
- Fumaric acid monomers such as fumaric acid, dimethyl fumaric acid, diisobutyl fumarate, dimethyl fumarate, diethyl fumarate, fumarodiphenyl ester; Monomers comprising phosphonic acid groups which are not hydrolyzable, such as 2-ethyl-octyl-vinylphosphonic acid ester;
- Sulfonic acid group-containing monomers which are not hydrolyzable, such as 2-ethyl-octyl-vinylsulfonic acid ester;
- (meth) acrylates include methacrylates and acrylates as well as mixtures of both.
- (Meth) acrylates derived from unsaturated alcohols, such as. Oleyl (meth) acrylate, 2-propynyl (meth) acrylate, allyl (meth) acrylate, vinyl (meth) acrylate;
- Aryl (meth) acrylates such as benzyl (meth) acrylate or
- Phenyl (meth) acrylate wherein the aryl radicals may each be unsubstituted or substituted up to four times;
- Cycloalkyl (meth) acrylates such as 3-vinylcyclohexyl (meth) acrylate, bornyl (meth) acrylate; Hydroxylalkyl (meth) acrylates, such as
- Glycol di (meth) acrylates such as 1,4-butanediol di (meth) acrylate, (meth) acrylates of ether alcohols, such as
- the hydrophobic monomers comprise exactly one copolymerizable carbon-carbon double bond or exactly one copolymerizable carbon-carbon triple bond.
- the hydrophobic monomers are preferably stable to hydrolysis.
- Hydrolysis stability means that the monomers show a maximum saponification of 1%, preferably not more than 0.5%, in a hydrolysis treatment at 90 ° C. for 24 h in the presence of concentrated HCl.
- monomers which have no hydrolyzable groups are particularly preferred.
- compositions which comprise at least 10% by weight, preferably at least 20% by weight and very particularly preferably at least 30% by weight of hydrophobic monomers, based on the weight of the monomers.
- compositions which comprise at least 10% by weight, preferably at least 20% by weight and very preferably at least 30% by weight of monomers comprising phosphonic acid groups, based on the weight the monomers.
- compositions are preferably used which have at least 10% by weight, preferably at least 20% by weight and very preferably at least 30% by weight of monomers comprising sulfonic acid groups, based on the weight the monomers.
- monomers which are capable of crosslinking in the preparation of the polymer membrane can be used.
- the monomers capable of crosslinking are in particular compounds which have at least 2 carbon-carbon double bonds. Preference is given to dienes, trienes, tetraenes, dimethyl acrylates, trimethyl acrylates, tetramethyl acrylates, diacrylates, triacrylates, tetraacrylates.
- R is a C 1 -C 15 -alkyl group, C 5 -C 20 -aryl or heteroaryl group, NR ' , -SO 2 ,
- R ' independently of one another are hydrogen, a C1-C15-alkyl group, C1-C15-
- Alkoxy group, C5-C20-aryl or heteroaryl group and n is at least 2.
- the substituents of the above radical R are preferably halogen, hydroxyl, carboxyl, carboxyl, carboxyl esters, nitriles, amines, silyl, siloxane radicals.
- crosslinkers are allyl acetonitrile, allyl bromide, 1-bromoallyl bromide, allyl chloride, 1-chloroallyl chloride allyl ether, allyl ethyl ether, allyl iodide, allyl methyl ether, allyl phenyl ether, 4-chloro allyl phenyl ether, 2,4,6-tribromoallyl phenyl ether, allyl propyl ether, allyl-2-tolyl ether, allyl 3-tolyl ether, allyl-4-tolyl ether, allyl acetate, allylacetic acid, 3-chloroallyl alcohol, allyl cyanamide, allyl fluoride, allyl isocyanide, allyl formate,
- crosslinkers are optional, these compounds usually in the range between 0.05 to 30 wt .-%, preferably 0.1 to 20 wt .-%, particularly preferably 1 and 10 wt .-%, based on the weight of Phosphonic acid groups comprising monomers can be used.
- the polymerization of the monomer set forth above is known per se, which is preferably carried out free-radically.
- the radical formation can be effected thermally, photochemically, chemically and / or electrochemically.
- Suitable free-radical formers include azo compounds, peroxy compounds, persulfate compounds or azoamidines.
- Nonlimiting examples are dibenzoyl peroxide, dicumyl peroxide, cumene hydroperoxide,
- free-radical formers which form free radicals upon irradiation.
- free-radical formers include ⁇ -diethoxyacetophenone (DEAP, Upjon Corp), n-butyl benzoin ether (®Trigonal-14, AKZO) and 2,2-dimethoxy-2-phenylacetophenone (®Igacure 651) and
- free radical generator Usually between 0.0001 and 5% by weight, in particular 0.01 to 3% by weight (based on the weight of the hydrophobic monomers and the monomers which comprise phosphonic acid groups and / or sulphonic acid groups) of free radical generator are added.
- the amount of free radical generator can be varied depending on the desired degree of polymerization.
- Polymer comprising sulfonic acid groups preferably has a solubility in water at 90 ° C of at most 10 g / l, more preferably at most 5 g / l and most preferably at most 0.5 g / l.
- the water solubility can be determined according to the so-called piston method.
- the weight ratio of the monomers comprising phosphonic acid and / or sulfonic acid groups to the hydrophobic monomers may preferably be in the range of 10: 1 to 1:10, more preferably 5: 1 to 1: 5. The higher the content of hydrophobic monomers, the lower the solubility of the polymer in water, but the conductivity is lower.
- the polymer comprising phosphonic acid groups and / or sulfonic acid groups may preferably have a weight-average molecular weight of at least 3000 g / mol, more preferably at least 10000 g / mol, and most preferably at least 100000 g / mol.
- the polymer comprising phosphonic acid and / or sulfonic acid groups may be a random copolymer, a block copolymer or a graft copolymer.
- Polymeric membranes of the present invention can be obtained by well-known methods. For this purpose, first the polymer can be obtained by known processes, for example a solution or bulk polymerization. In a subsequent step, the polymer can be converted into a membrane, for example by extrusion.
- these polymer membranes are obtainable inter alia by a process comprising the steps A) preparation of a composition comprising hydrophobic monomers and monomers comprising phosphonic acid groups and / or sulfonic acid groups,
- step B) applying a layer using the composition according to step A) on a support
- step B) Polymerization of the available in the sheet structure according to step B) monomers.
- the membrane may preferably contain at least 50% by weight, more preferably at least 80% by weight and most preferably at least 90% by weight of at least one polymer comprising phosphonic acid and / or sulphonic acid groups which is obtained by copolymerization of monomers, the phosphonic acid groups. and / or sulfonic acid groups, and hydrophobic monomers is available.
- the composition prepared in step A) preferably comprises at least 20% by weight, in particular at least 30% by weight and particularly preferably at least 50% by weight, based on the total weight of the composition, of monomers comprising phosphonic acid groups.
- the composition prepared in step A) may additionally contain further organic and / or inorganic solvents.
- the organic solvents include in particular polar aprotic solvents, such as dimethyl sulfoxide (DMSO), esters, such as ethyl acetate, and polar protic solvents, such as alcohols, such as ethanol, propanol, isopropanol and / or butanol.
- polar aprotic solvents such as dimethyl sulfoxide (DMSO)
- esters such as ethyl acetate
- polar protic solvents such as alcohols, such as ethanol, propanol, isopropanol and / or butanol.
- the inorganic solvents include in particular water, phosphoric acid and polyphosphoric acid.
- the content of monomers comprising phosphonic acid groups in such solutions is generally at least 5% by weight, preferably at least 10% by weight, particularly preferably between 10 and 97% by weight.
- Crosslinking monomers may, if desired, be added to the composition in, for example, step A).
- the monomers capable of crosslinking can also be applied to the planar structure according to step C).
- the polymer membranes of the present invention may comprise, in addition to the polymers comprising phosphonic acid groups, further polymers (B) which are not obtainable by polymerization of monomers comprising phosphonic acid groups.
- the stability of the membrane can be surprisingly increased.
- the use of these polymers (B) is costly.
- the weight-related conductivity of the membrane may decrease.
- a further polymer (B) may be added.
- This polymer (B) may be dissolved, dispersed or suspended, inter alia.
- Preferred polymers (B) include, but are not limited to, polyolefins such as poly (chloroprene), polyacetylene, polyphenylene, poly (p-xylylene), polyarylmethylene, polystyrene, polymethylstyrene, polyvinyl alcohol, polyvinyl acetate, polyvinyl ether, polyvinylamine, poly (N-vinylacetamide), Polyvinylimidazole, polyvinylcarbazole, polyvinylpyrrolidone, polyvinylpyridine, polyvinyl chloride, polyvinylidene chloride,
- polyolefins such as poly (chloroprene), polyacetylene, polyphenylene, poly (p-xylylene), polyarylmethylene, polystyrene, polymethylstyrene, polyvinyl alcohol, polyvinyl acetate, polyvinyl ether, polyvinylamine, poly (N-viny
- Polyphenylene sulfide polyethersulfone, polysulfone, polyether ether sulfone, polyaryl ether sulfone, polyphenylene sulfone, polyphenylene sulfide sulfone, poly (phenylsulfide-1, 4-phenylene, polymers, CN bonds in the main chain, e.g.
- Polyimines polyisocyanides, polyetherimine, polyetherimides, poly (trifluoro-methyl-bis (phthalimido) -phenyl, polyaniline, polyaramides, polyamides, polyhydrazides, polyurethanes, polyimides, polyazoles, polyazole ether ketone, polyureas, polyazines; liquid crystalline polymers, in particular Vectra and inorganic polymers, for example, polysilanes, polycarbosilanes, polysiloxanes,
- Polysilicic acid Polysilicates, silicones, polyphosphazenes and polythiazyl. These polymers can be used singly or as a mixture of two, three or more polymers.
- Particularly preferred polymers are the at least one nitrogen atom,
- Oxygen atom and / or sulfur atom contained in a repeating unit Particular preference is given to polymers which contain at least one aromatic ring having at least one nitrogen, oxygen and / or sulfur heteroatom per repeat unit. Within this group, polymers based on polyazoles are particularly preferred. These basic polyazole polymers contain at least one aromatic ring having at least one nitrogen heteroatom per repeat unit.
- the aromatic ring is preferably a five- or six-membered ring having one to three nitrogen atoms, which may be fused to another ring, in particular another aromatic ring.
- Polymers based on polyazole generally contain recurring azole units of the general formula (I) and / or (II) and / or (III) and / or (IV) and / or (V) and / or (VI) and / or ( VII) and / or (VIII) and / or (IX) and / or (X) and / or (XI) and / or (XII) and / or (XIII) and / or (XIV) and / or (XV) and / or (XVI) and / or (XVI) and / or (XVII) and / or (XVIII) and / or (XIX) and / or (XX) and / or Q ( XI) and / or (XXII)
- Ar are the same or different and, for a four-membered aromatic or heteroaromatic group which may be mononuclear or polynuclear, Ar 1 are the same or different and for a divalent aromatic or heteroaromatic group which may be mononuclear or polynuclear, Ar 2 may be the same or different and for a two- or three-membered aromatic or heteroaromatic group which may be mononuclear or polynuclear, Ar 3 are the same or different and are a trivalent aromatic or heteroaromatic group which may be mononuclear or polynuclear,
- Ar 4 are the same or different and, for a trivalent aromatic or heteroaromatic group which may be mononuclear or polynuclear
- Ar 5 are the same or different and for a tetravalent aromatic or heteroaromatic group which may be mononuclear or polynuclear
- Ar 6 is or are different and for a divalent aromatic or heteroaromatic group which may be mononuclear or polynuclear
- Ar 7 are the same or different and for a divalent aromatic or heteroaromatic group which may be mononuclear or polynuclear
- Ar 8 are the same or different and for a trivalent aromatic or heteroaromatic group which may be mononuclear or polynuclear
- Ar 9 are the same or different and represent a bi- or tri- or tetravalent aromatic or heteroaromatic group which may be mononuclear or polynuclear,
- Ar 10 are the same or different and represent a divalent or trivalent aromatic or heteroaromatic group which may be mononuclear or polynuclear,
- Ar 11 are the same or different and, for a divalent aromatic or heteroaromatic group which may be mononuclear or polynuclear, X is the same or different and is oxygen, sulfur or a
- Amino group which is a hydrogen atom, a 1-20 carbon atoms group, preferably a branched or unbranched
- Alkyl or alkoxy group, or an aryl group as a further radical R is identical or different for hydrogen, an alkyl group and an aromatic
- Group is the same or different hydrogen, an alkyl group and an aromatic group is provided with the proviso that R in formula XX is a divalent group, and n, m is an integer greater than or equal to 10, preferably greater than or equal to 100.
- Preferred aromatic or heteroaromatic groups are derived from benzene, naphthalene, biphenyl, diphenyl ether, diphenylmethane, diphenyldimethylmethane, Bisphenone, diphenylsulfone, thiophene, furan, pyrrole, thiazole, oxazole, imidazole, isothiazole, isoxazole, pyrazole, 1, 3,4-oxadiazole, 2,5-diphenyl-1, 3,4-oxadiazole, 1, 3,4- Thiadiazole, 1, 3,4-triazole, 2,5-diphenyl-1, 3,4-triazole, 1, 2,5-triphenyl-1, 3,4-triazole, 1, 2,4-oxadiazole, 1, 2,4-thiadiazole, 1, 2,4-triazole, 1, 2,3-triazole, 1, 2,3,4-tetrazole, benzo [b] thiophene, benzo [
- the substitution pattern of Ar 1 , Ar 4 , Ar 6 , Ar 7 , Ar 8 , Ar 9 , Ar 10 , Ar 11 is arbitrary, in the case of phenylene, for example, Ar 1 , Ar 4 , Ar 6 , Ar 7 , Ar 8 , Ar 9 , Ar 10 , Ar 11 are ortho, meta and para-phenylene. Particularly preferred groups are derived from
- Benzene and biphenylene which may optionally be substituted, from.
- Preferred alkyl groups are short chain alkyl groups of 1 to 4 carbon atoms, such as. For example, methyl, ethyl, n- or i-propyl and t-butyl groups.
- Preferred aromatic groups are phenyl or naphthyl groups.
- the alkyl groups and the aromatic groups may be substituted.
- Preferred substituents are halogen atoms such as. As fluorine, amino groups, hydroxy groups or short-chain alkyl groups such as. For example, methyl or ethyl groups.
- the polyazoles can also have different recurring units which differ, for example, in their radical X. Preferably, however, it has only the same X radicals in a repeating unit.
- Other preferred polyazole polymers are polyimidazoles, polybenzothiazoles, polybenzoxazoles, polyoxadiazoles, polyquinoxalines, polythiadiazoles, poly (pyridines), poly (pyrimidines), and poly (tetrazapyrenes).
- the polymer containing recurring azole units is a copolymer or a blend containing at least two units of the formulas (I) to (XXW) which differ from each other.
- the polymers can be present as block copolymers (diblock, triblock), random copolymers, periodic copolymers and / or alternating polymers.
- the polymer containing recurring azole units is a polyazole which contains only units of the formula (I) and / or (II).
- the number of repeating azole units in the polymer is preferably an integer greater than or equal to 10.
- Particularly preferred polymers contain at least 100 recurring azole units.
- Benzimidazole units preferred. Some examples of the most useful polymers containing recurring benzimidazole units are represented by the following formulas:
- n and m is an integer greater than or equal to 10, preferably greater than or equal to 100.
- polyazole polymers are polyimidazoles, polybenzimidazole ether ketone, polybenzothiazoles, polybenzoxazoles, polytriazoles, polyoxadiazoles, polythiadiazoles, polypyrazoles, polyquinoxalines, poly (pyridines),
- Preferred polyazoles are characterized by a high molecular weight. This is especially true for the polybenzimidazoles. Measured as intrinsic viscosity, this is preferably at least 0.2 dl / g, preferably 0.7 to 10 dl / g, in particular 0.8 to 5 dl / g.
- Celazole is particularly preferred from Celanese.
- the properties of the polymer film and polymer membrane can be improved by screening the starting polymer as described in German Patent Application No. 10129458.1.
- Aromatic sulfonic acid groups are groups in which the sulfonic acid group (-SO 3 H) is covalently bonded to an aromatic or heteroaromatic group.
- the aromatic group may be part of the backbone of the polymer or part of a side group, with polymers having aromatic groups in the backbone being preferred.
- the sulfonic acid groups can also be used in many cases in the form of the salts.
- Ethyl ester, or halides of the sulfonic acids are used, which are converted during operation of the membrane into the sulfonic acid.
- the polymers modified with sulfonic acid groups preferably have a content of sulfonic acid groups in the range from 0.5 to 3 meq / g, preferably 0.5 to
- the sulfonic acid groups are converted into the free acid.
- the polymer is treated in a known manner with acid, wherein excess acid is removed by washing.
- the sulfonated polymer is first treated for 2 hours in boiling water. Subsequently, excess water is tapped off and the sample is dried for 15 hours at 160 ° C. in a vacuum drying cabinet at p ⁇ 1 mbar. Then the dry weight of the membrane is determined.
- the dried polymer is then in DMSO at 80 ° C solved during 1 h. The solution is then titrated with 0.1 M NaOH. From the consumption of the acid to the equivalent point and the dry weight, the ion exchange capacity (IEC) is then calculated.
- IEC ion exchange capacity
- Polymers having sulfonic acid groups covalently bonded to aromatic groups are known in the art.
- polymers containing aromatic sulfonic acid groups can be prepared by sulfonation of polymers. Methods for sulfonating polymers are described in F. Kucera et. al. Polymer Engineering and Science 1988, Vol. 38, No. 5, 783-792. In this case, the sulfonation conditions can be selected so that a low degree of sulfonation is formed (DE-A-19959289).
- perfluorinated polymers can be prepared as described in US-A-5422411 by copolymerization of trifluorostyrene and sulfonyl-modified trifuorostyrene.
- high temperature stable thermoplastics which have sulfonic acid groups attached to aromatic groups.
- such polymers have aromatic groups in the main chain.
- sulfonated polyether ketones DE-A-4219077, WO96 / 01177
- sulfonated polysulfones J. Membr. Sei. 83 (1993) p.211
- sulfonated polyphenylene sulfide DE-A-19527435
- polymers with sulfonic acid groups bound to aromatics described above can be used individually or as a mixture, particular preference being given to mixtures having polymers with aromatics in the main chain.
- the preferred polymers include polysulfones, in particular polysulfone with
- preferred polysulphones and polyethersulphones have a melt volume rate MVR 300/21, 6 is less than or equal to 40 cm 3/10 min, in particular less than or equal to 30 cm 3/10 min and particularly preferably less than or equal to 20 cm 3/10 min measured according to ISO 1133.
- the weight ratio of polymer having covalently bonded to aromatic groups is a particular aspect of the present invention.
- Sulfonic acid groups to monomers comprising phosphonic acid groups in the range of 0.1 to 50, preferably from 0.2 to 20, more preferably from 1 to 10.
- preferred proton-conducting polymer membranes are obtainable by a process comprising the steps
- step II polymerization of at least a portion of the monomers comprising phosphonic acid groups which have been introduced into the polymer film in step I).
- Swelling is understood as meaning a weight increase of the film of at least 3% by weight.
- the swelling is at least 5%, more preferably at least 10%.
- Determination of Swelling Q is determined gravimetrically from the mass of the film before swelling m 0 and the mass of the film after the polymerization according to step B), m 2 .
- the swelling preferably takes place at a temperature above 0 ° C., in particular between room temperature (20 ° C.) and 180 ° C. in a liquid which preferably contains at least 5% by weight of monomers comprising phosphonic acid groups. Furthermore, the swelling can also be carried out at elevated pressure.
- a temperature above 0 ° C. in particular between room temperature (20 ° C.) and 180 ° C. in a liquid which preferably contains at least 5% by weight of monomers comprising phosphonic acid groups.
- the swelling can also be carried out at elevated pressure.
- the polymer film used for swelling generally has a thickness in the range of 5 to 1000 .mu.m, preferably 10 to 500 .mu.m and particularly preferably 20 to 300 .mu.m.
- the preparation of such films of polymers is generally known, some of which are commercially available.
- the liquid containing hydrophobic monomers and monomers comprising phosphonic acid groups and / or sulfonic acid groups may be a solution, which liquid may also contain suspended and / or dispersed ingredients. The viscosity of the liquid, the
- Containing monomers comprising phosphonic acid groups can be within a wide range, with an addition of solvents or an increase in temperature being able to be carried out to adjust the viscosity.
- the dynamic viscosity is preferably in the range from 0.1 to 10000 mPa * s, in particular from 0.2 to 2000 mPa * s, where these values can be measured, for example, in accordance with DIN 53015.
- the composition prepared in step A) or the liquid used in step I) may additionally contain further organic and / or inorganic solvents.
- the organic solvents include in particular polar aprotic solvents, such as dimethyl sulfoxide (DMSO), esters, such as ethyl acetate, and polar protic solvents, such as alcohols, such as ethanol, propanol, isopropanol and / or butanol.
- the inorganic solvents include in particular water, phosphoric acid and polyphosphoric acid. These can positively influence the processability. For example, the rheology of the solution can be improved so that it can be more easily extruded or laced.
- fillers in particular proton-conductive fillers, and additional acids.
- Such substances preferably have an intrinsic conductivity at 100 ° C. of at least 10 -6 S / cm, in particular 10 -5 S / cm.
- Addition may be made, for example, in step A) and / or step B) or step I). Furthermore, these additives, if they are in liquid form, can also be added after the polymerization according to step C) or step II).
- Non-limiting examples of proton-conductive fillers are:
- Sulfates such as: CsHSO 4 , Fe (SO 4 ) 2 , (NH 4 ) 3 H (SO 4 ) 2 , LiHSO 4 , NaHSO 4 , KHSO 4 ,
- RbSO 4 LiN 2 H 5 SO 4 , NH 4 HSO 4 , phosphates such as Zr 3 (PO 4 ) 4 , Zr (HPO 4 ) 2 , HZr 2 (PO 4 ) 3 , UO 2 PO 4 .3H 2 O, H 8 UO 2 PO 4 ,
- Oxides such as Al 2 O 3 , Sb 2 O 5 , ThO 2 , SnO 2 , ZrO 2 , MoO 3 silicates such as zeolites, zeolites (NH 4 +), phyllosilicates, framework silicates, H-natrolites,
- H-mordenites NH 4 -alcines, NH 4 -sodalites, NH 4 -gallates, H-montmorillonites acids such as HCIO 4 , SbF 5
- Fillers such as carbides, in particular SiC, Si 3 N 4 , fibers, in particular glass fibers, glass powders and / or polymer fibers, preferably based on
- the membrane after the polymerization according to step C) or step II) comprises at most 80 wt .-%, preferably at most 50 wt .-% and particularly preferably at most 20 wt .-% additives.
- this membrane may also contain perfluorinated sulfonic acid additives (preferably 0.1-20% by weight, preferably 0.2-15% by weight, very preferably 0.2-10% by weight). These additives improve performance near the cathode to increase oxygen solubility and oxygen diffusion and reduce adsorption of the electrolyte on the catalyst surface.
- Trifluoromethanesulfonic acid potassium trifluoromethanesulfonate, sodium trifluoromethanesulfonate, lithium trifluoromethanesulfonate,
- Ammonium trifluoromethanesulfonate potassium perfluorohexanesulfonate, sodium perfluorohexanesulfonate, lithium perfluorohexanesulfonate, ammonium perfluorohexanesulfonate, perfluorohexanesulfonic acid, potassium nonafluorobutanesulfonate, sodium nonafluorobutanesulfonate, Lithium nonafluorobutanesulfonate, ammonium nonafluorobutanesulfonate, cesium nonafluorobutanesulfonate, triethylammonium perfluorohexasulfonate and perfluorosulfoimides.
- step B The formation of the planar structure according to step B) is carried out by means known per se
- Suitable carriers are all suitable carriers under the conditions as inert. These supports include in particular films of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyhexafluoropropylene, copolymers of PTFE with
- Hexafluoropropylene polyimides, polyphenylene sulfides (PPS) and polypropylene (PP).
- the thickness of the planar structure according to step B) is preferably between 10 and 1000 .mu.m, preferably between 15 and 500 .mu.m, in particular between 20 and 300 .mu.m and particularly preferably between 30 and 200 .mu.m.
- the polymerization of the monomers in step C) or step II) is preferably carried out free-radically.
- the radical formation can be effected thermally, photochemically, chemically and / or electrochemically.
- a starter solution containing at least one substance capable of forming radicals may be added to the composition after heating the composition according to step A).
- a starter solution can be applied to the flat structure obtained after step B). This can be done by means of per se known means (e.g., spraying, dipping, etc.) known in the art.
- a starter solution may be added to the liquid. This can also be applied after swelling on the flat structure.
- NIR near IR
- H Light having a wavelength in the range of about 700 to 2000 nm or an energy in the range of about 0.6 to 1.75 eV).
- the polymerization can also be carried out by the action of UV light having a wavelength of less than 400 nm.
- This polymerization method is known per se and described, for example, in Hans Joerg Elias, Makromolekulare Chemie, S. Auflage, Volume 1, pp. 492-511; DR Arnold, NC Baird, JR Bolton, JCD Brand, PW M Jacobs, P.de Mayo, WR Ware, Photochemistry-An Introduction, Academic Press, New York and MK Mishra, Radical Photopolymerization of Vinyl Monomers, J. Macromol. Sci.-Revs. Macromol. Chem. Phys. C22 (1982-1983) 409.
- a membrane is irradiated with a radiation dose in the range from 1 to 300 kGy, preferably from 3 to 250 kGy and most preferably from 20 to 200 kGy.
- the polymerization of the monomers comprising phosphonic acid groups in step C) or step II) is preferably carried out at temperatures above room temperature (20 ° C.) and below 200 ° C., in particular at temperatures between 40 ° C. and 150 ° C., more preferably between 50 ° C. and 120 ° C.
- the polymerization is preferably carried out under normal pressure, but can also be effected under the action of pressure.
- the polymerization leads to a solidification of the flat structure, this solidification can be followed by microhardness measurement.
- the increase in hardness caused by the polymerization is preferably at least 20%, based on the hardness of the sheet-like structure obtained in step B).
- the membranes have a high mechanical stability. This size results from the hardness of the membrane, which is determined by means of microhardness measurement according to DIN 50539.
- the membrane is loaded with a Vickers diamond successively within 20 s up to a force of 3 mN and the penetration depth is determined.
- the hardness at room temperature is at least 0.01 N / mm 2 , preferably at least 0.1 N / mm 2 and very particularly preferably at least 1 N / mm 2 , without this being a restriction.
- the force is kept constant at 3 mN for 5 s and the creep is calculated from the penetration depth.
- creep CHU is 0.003 / 20/5 below these
- the modulus determined by means of microhardness measurement is YHU at least 0.5 MPa, in particular at least 5 MPa and very particularly preferably at least 10 MPa, without thereby limiting SOI.
- the hardness of the membrane refers both to a surface which has no catalyst layer and to a side which has a catalyst layer.
- the planar structure obtained after the polymerization is a self-supporting membrane.
- the degree of polymerization is preferably at least 2, in particular at least 5, particularly preferably at least 30 repeating units, in particular at least 50
- Repeating units most preferably at least 100 repeating units.
- This degree of polymerization is determined by the number average molecular weight M n , which can be determined by GPC methods. Due to the problems of isolating the polymers comprising phosphonic acid groups and / or sulfonic acid groups contained in the membrane without degradation, this value is determined on the basis of a sample which is carried out by polymerization of monomers comprising phosphonic acid groups and / or monomers comprising sulfonic acid groups without the addition of polymer. In this case, the proportion by weight of monomers comprising phosphonic acid groups and / or monomers comprising sulfonic acid groups and of free-radical initiators is kept constant in comparison with the ratios of preparation of the membrane.
- the conversion achieved in a comparative polymerization is preferably greater than or equal to 20%, in particular greater than or equal to 40% and particularly preferably greater than or equal to 75%, based on the monomers comprising phosphonic acid groups and / or monomers comprising sulfonic acid groups.
- the polymers comprising phosphonic acid groups and / or sulfonic acid groups contained in the membrane preferably have a broad molecular weight distribution.
- the polymers comprising phosphonic acid groups can have a polydispersity M w / M n in the range from 1 to 20, particularly preferably from 3 to 10.
- the water content of the proton-conducting membrane is preferably at most 15% by weight, particularly preferably at most 10% by weight and very particularly preferably at most 5% by weight, at an operating temperature of at least 90 ° C.
- preferred membranes comprise fractions of low molecular weight phosphonic acid groups and / or polymers comprising sulfonic acid groups.
- the membrane obtained according to step C) or step II) is self-supporting, i. It can be detached from the carrier without damage and then optionally further processed directly.
- step C) or step M) can lead to a decrease in the layer thickness.
- the thickness of the membrane is preferably between 8 and 990 ⁇ m, preferably between 15 and 500 ⁇ m, in particular between 25 and 175 ⁇ m.
- the membrane can be crosslinked thermally, photochemically, chemically and / or electrochemically on the surface. This hardening of the
- Membrane surface additionally improves the properties of the membrane.
- the membrane may be heated to a temperature of at least 150 ° C, preferably at least 200 ° C, and more preferably at least 250 ° C.
- the thermal crosslinking takes place in the presence of oxygen.
- the oxygen concentration in this process step is usually in the range of 5 to 50% by volume, preferably 10 to 40% by volume, without this being intended to limit it.
- NIR near IR
- d. H Light with a wavelength in the range of about 700 to 2000 nm or an energy in the range of about 0.6 to 1.75 eV) and / or UV light.
- Another method is the irradiation with ß-, ⁇ - and / or electron beams.
- the radiation dose here is preferably between 5 and 250 kGy, in particular 10 to 200 kGy.
- Irradiation can be carried out in air or under inert gas. As a result, the performance properties of the membrane, in particular their durability are improved.
- the duration of the crosslinking reaction can be in a wide range. In general, this reaction time is in the range of 1 second to 10 hours, preferably 1 minute to 1 hour, without this being a restriction.
- the membrane comprises by elemental analysis at least 3 wt .-%, preferably at least 5 wt .-% and particularly preferably at least 7 wt .-% phosphorus, based on the total weight of the membrane. The proportion of phosphorus can be determined by elemental analysis. For this purpose, the membrane at 110 ° C for 3
- the polymers comprising phosphonic acid groups and / or sulfonic acid groups preferably have a content of phosphonic acid groups and / or sulfonic acid groups of at least 5 meq / g, more preferably at least 10 meq / g. This value is determined by the so-called ion exchange capacity (IEC).
- IEC ion exchange capacity
- the phosphonic acid and / or sulfonic acid groups are converted into the free acid, the measurement taking place before polymerization of the monomers comprising phosphonic acid groups.
- the sample is then titrated with 0.1 M NaOH. From the consumption of the acid to the equivalent point and the dry weight, the ion exchange capacity (IEC) is then calculated.
- IEC ion exchange capacity
- the polymer membrane according to the invention has improved material properties compared to previously known doped polymer membranes. In particular, they show better performance compared to known doped polymer membranes. This is due in particular to an improved proton conductivity. This is at temperatures of 120 ° C, preferably 140 ° C at least 1 mS / cm, preferably at least 2 mS / cm, in particular at least 5 mS / cm and most preferably at least 10 mS / cm.
- the membranes show a high conductivity even at a temperature of 70 ° C.
- the conductivity depends on the sulfonic acid group content of the membrane. The higher this proportion, the better the sulfonic acid group content of the membrane.
- a membrane according to the invention can be moistened at low temperatures.
- the compound used as an energy source for example hydrogen
- the compound used as an energy source for example hydrogen
- the water formed by the reaction is sufficient to achieve humidification.
- the specific conductivity is measured by means of impedance spectroscopy in a 4-PoI arrangement in the potentiostatic mode and using platinum electrodes (wire, 0.25 mm diameter). The distance between the current-collecting electrodes is 2 cm.
- the spectrum obtained is seen by a simple model consisting of a parallel arrangement of an ohmic resistor and a Kapazi2011 evaluated.
- the sample cross-section of the phosphoric acid-doped membrane is measured immediately prior to sample assembly. To measure the temperature dependence, the measuring cell is in a
- the oven was brought to the desired temperature and controlled by a Pt-100 thermocouple positioned close to the sample. After reaching the temperature, the sample is held at this temperature for 10 minutes before starting the measurement.
- the passage current density when operated with 0.5 M methanol solution and 90 ° C in a so-called liquid direct methanol fuel cell preferably less than 100 mA / cm 2 , in particular less than 70 mA / cm 2, more preferably less than 50 mA / cm 2 and most preferably less than 10 mA / cm 2 .
- the passage current density is preferably less than 100 mA / cm 2 , in particular less than 50 mA / cm 2, very particularly preferably less than 10 mA / cm 2 .
- Amount of carbon dioxide released at the cathode measured by means of a CO 2 sensor. From the thus obtained value of the CO 2 amount, as described by P. Zelenay, SC Thomas, S. Gottesfeld in S. Gottesfeld, TF Filler "Proton Conducting Membrane Fuel Cells II" ECS Proc. Vol. 98-27 p 308, which calculates the passage current density.
- a polymer membrane according to the invention may comprise one or two catalyst layers which are electrochemically active.
- electrochemically active denotes that the catalyst layer or layers are capable of oxidizing
- the catalyst layer or catalyst layers contain or contain catalytically active substances. These include precious metals of the platinum group, ie Pt, Pd, Ir, Rh, Os, Ru, or the precious metals Au and Ag. Furthermore, it is also possible to use alloys of all the aforementioned metals. Furthermore, at least one catalyst layer may comprise alloys of the platinum group elements with base metals such as Fe, Co, Ni, Cr, Mn, Zr, Ti, Ga, V, etc. contain. In addition, the oxides of the aforementioned noble metals and / or non-noble metals can also be used.
- the catalytically active particles which comprise the abovementioned substances can be used as metal powder, so-called black noble metal, in particular platinum and / or platinum alloys.
- Such particles generally have a size in the range of 5 nm to 200 nm, preferably in the range of 7 nm to 100 nm.
- the metals can also be used on a carrier material.
- this support comprises carbon, which can be used in particular in the form of carbon black, graphite or graphitized carbon black.
- electrically conductive metal oxides such as, for example, SnO x , TiO x , or phosphates, such as, for example, FePO x , NbPO x , Zr y (PO x ) z as carrier material.
- the indices x, y and z denote the oxygen or metal content of the individual compounds, which may be in a known range, since the transition metals can assume different oxidation states.
- the content of these supported metal particles is generally in the range of 1 to 80 wt .-%, preferably 5 to 60 wt .-% and particularly preferably 10 to 50 wt. %, without this being a limitation.
- the particle size of the carrier in particular the size of the carbon particles, is preferably in the range of 20 to 100 nm, in particular 30 to 60 nm.
- the size of the metal particles present thereon is preferably in the range of 1 to 20 nm, in particular 1 to
- the sizes of the different particles represent mean values and can be determined by transmission electron microscopy or powder X-ray diffractometry.
- the catalytically active particles set forth above can generally be obtained commercially.
- this catalyst layer phosphonic acid groups and / or
- Ionomers comprising sulfonic acid groups which are obtainable by polymerization of monomers comprising phosphonic acid groups and / or monomers containing sulfonic acid groups.
- the phosphonic acid group-containing monomers have been set forth above, so that reference is hereby made.
- Ethenephosphonic acid, propenephosphonic acid, butenephosphonic acid are preferred;
- Acrylic acid and / or methacrylic acid compounds which have phosphonic acid groups, for example 2-phosphonomethylacrylic acid, 2-phosphonomethyl-methacrylic acid,
- vinylphosphonic acid ethenephosphonic acid
- a preferred vinylphosphonic acid has a purity of more than 70%, in particular 90% and particularly preferably more than 97% purity.
- Monomers can be used.
- monomers comprising monomers comprising phosphonic acid groups and monomers containing sulfonic acid groups are used in the preparation of the ionomers in which the weight ratio of monomers comprising phosphonic acid groups to monomers comprising sulfonic acid ranges from 100: 1 to 1: 100, preferably 10: 1 to 1:10, and more preferably 2: 1 to 1: 2.
- the ionomer may comprise units derived from the aforementioned hydrophobic monomers.
- the ionomers may have repeating units derived from the hydrophobic monomers set forth above.
- the ionomer has a molecular weight in the range of 300 to
- the ionomer may have a polydispersity M w / M n in the range from 1 to 20, more preferably from 3 to
- polyvinylphosphonic acids can also be used as ionomers. These are available, inter alia, from Polysciences Inc.
- the ionomers may have a particularly uniform distribution in the catalyst layer. This uniform distribution can be achieved, in particular, by bringing the ionomers into contact with the catalytically active substances before applying the catalyst layer to the polymer membrane.
- the uniform distribution of the ionomer in the catalyst layer can be determined, for example, by EDX.
- the scattering within the catalyst layer is at most 10%, preferably 5% and particularly preferably 1%.
- the proportion of ionomer in the catalyst layer is preferably in the range of 1 to 60 wt .-%, particularly preferably in the range of 10 to 50 wt .-%.
- the proportion of phosphorus according to elemental analysis in the catalyst layer is preferably at least 0.3% by weight, in particular at least 3 and particularly preferably at least 7% by weight. According to a particular aspect of the present invention, the proportion of phosphorus in the catalyst layer is in the
- a support provided with a coating containing a catalyst may be used to provide the layer formed in step C) with a catalyst layer.
- the membrane can be provided on one side or on both sides with a catalyst layer. If the membrane is provided with only one side of a catalyst layer, the opposite side of the membrane must be pressed with an electrode having a catalyst layer. If both sides of the membrane are to be provided with a catalyst layer, the following methods can also be used in combination to achieve an optimum result.
- the catalyst layer can be applied by a method in which a catalyst suspension is used.
- powders comprising the catalyst may also be used.
- the catalyst suspension may contain customary additives. These include, inter alia, fluoropolymers such as polytetrafluoroethylene (PTFE), thickeners, especially water-soluble polymers such as cellulose derivatives,
- Polyvinyl alcohol Polyethylene glycol, and surfactants.
- the surface-active substances include in particular ionic surfactants, for example fatty acid salts, in particular sodium laurate, potassium oleate; and alkylsulfonic acids, alkylsulfonic acid salts, in particular
- Natriumperfluorohexansulfonat Lithiumperfluorohexansulfonat, Ammoniumperfluorohexansulfonat, Perfluorohexansulfonklare, Kaliumnonafluorbutansulfonat, and nonionic surfactants, especially ethoxylated fatty alcohols and polyethylene glycols.
- the catalyst suspension may comprise liquid components at room temperature. These include organic solvents, which may be polar or nonpolar, phosphoric acid, polyphosphoric acid and / or water.
- the catalyst suspension preferably contains from 1 to 99% by weight, in particular from 10 to 80% by weight, of liquid constituents.
- the polar, organic solvents include, in particular, alcohols, such as ethanol, propanol, isopropanol and / or butanol.
- non-polar solvents include known
- Thin film thinner such as DuPont 8470 thin film thinner containing turpentine oils.
- the catalyst suspension may contain 0 to 60% fluoropolymer based on the weight of the catalyst material, preferably 1 to 50%.
- the weight ratio of fluoropolymer to catalyst material, comprising at least one noble metal and optionally one or more support materials be greater than 0.1, wherein this ratio is preferably in the range of 0.2 to 0.6.
- the catalyst suspension can be applied to the membrane by conventional methods. Depending on the viscosity of the suspension, which is also in paste form may be present, various methods are known with which the suspension can be applied. Suitable processes are those for coating films, fabrics, textiles and / or papers, in particular spraying processes and printing processes, such as, for example, stencil and screen printing processes, inkjet processes, roll application, in particular anilox rolls, slot die application and doctoring. The particular method and the viscosity of the catalyst suspension is dependent on the hardness of the membrane.
- the viscosity can be influenced by the solids content, in particular the proportion of catalytically active particles, and the proportion of additives.
- the viscosity to be adjusted depends on the application method of the catalyst suspension, the optimum values and their determination being familiar to the person skilled in the art.
- an improvement in the binding of catalyst and membrane can be achieved by heating and / or pressing. In addition, the rising
- Binding between membrane and catalyst by a previously described surface crosslinking treatment which can be effected thermally, photochemically, chemically and / or electrochemically.
- Catalyst layer applied by a powder process a catalyst powder is used, which may contain additional additives, which have been exemplified above.
- the catalyst powder may include spray methods and
- Sieve method can be used.
- the powder mixture is sprayed onto the membrane with a nozzle, for example a slot nozzle.
- the membrane provided with a catalyst layer is subsequently heated in order to improve the connection between catalyst and membrane. The heating can be done for example via a hot roll.
- Such methods and devices for applying the powder are described inter alia in DE 195 09 748, DE 195 09 749 and DE 197 57 492.
- the catalyst powder is applied to the membrane with a shaking sieve.
- An apparatus for applying a catalyst powder to a membrane is described in WO 00/26982.
- the binding of catalyst and membrane can be improved by heating.
- the with at least one catalyst layer provided membrane to a temperature in the range of 50 to 200 ° C, in particular 100 to 180 ° C are heated.
- the catalyst layer may be applied by a method in which a coating containing a catalyst is applied to a support, and then the coating on the support containing a catalyst is transferred to a membrane.
- a coating containing a catalyst is applied to a support, and then the coating on the support containing a catalyst is transferred to a membrane.
- the carrier provided with a catalyst coating can be prepared, for example, by preparing a catalyst suspension described above. This catalyst suspension is then applied to a carrier film, for example made of polytetrafluoroethylene. After applying the suspension, the volatiles are removed.
- the transfer of the coating containing a catalyst can take place, inter alia, by hot pressing.
- the composite comprising a catalyst layer and a membrane and a carrier film is heated to a temperature in the range of 50 ° C to 200 ° C and pressed at a pressure of 0.1 to 5 MPa. In general, a few seconds are sufficient to connect the catalyst layer to the membrane. This time is preferably in the range from 1 second to 5 minutes, in particular 5 seconds to 1 minute.
- the catalyst layer has a thickness in the range of 1 to 1000 .mu.m, in particular from 5 to
- This value represents an average value that can be determined by measuring the layer thickness in the cross-section of images that can be obtained with a scanning electron microscope (SEM).
- the membrane provided with at least one catalyst layer comprises 0.1 to 10.0 mg / cm 2 , preferably 0.2 to 6.0 mg / cm 2 and particularly preferably 0.2 to 2 mg / cm 2 of the catalytically active metal, eg Pt.
- the catalytically active metal eg Pt.
- one side of a membrane has a higher metal content than the opposite side of the membrane Membrane.
- the metal content of one side is at least twice as high as the metal content of the opposite side.
- the membrane can still be crosslinked by the action of heat in the presence of oxygen. This hardening of the membrane additionally improves the properties of the membrane.
- the membrane can be heated to a temperature of at least 150 ° C, preferably at least 200 ° C and more preferably at least 250 ° C.
- the oxygen concentration in this process step is usually in the range of 5 to 50% by volume, preferably 10 to 40% by volume, without this being intended to limit it.
- IR infra red, ie light with a wavelength of more than 700 nm
- NIR near IR, ie light with a wavelength in the range of about 700 to 2000 nm or an energy in the range of about 0.6 to 1.75 eV).
- Another method is the irradiation with ß-rays.
- the radiation dose is between 5 and 200 kGy.
- the duration of the crosslinking reaction can be in a wide range. In general, this reaction time is in the range of 1 second to 10 hours, preferably 1 minute to 1 hour, without this being a restriction.
- Possible fields of use of the polymer membranes according to the invention include use in fuel cells, in electrolysis, in capacitors and in battery systems.
- the present invention also relates to a membrane-electrode assembly comprising at least one polymer membrane according to the invention.
- a membrane-electrode assembly comprising at least one polymer membrane according to the invention.
- Electrodes, gas diffusion layers and catalysts are also part of the description.
- the membrane according to the invention can be connected to a gas diffusion layer. If the membrane is provided on both sides with a catalyst layer, the gas diffusion layer need not have a catalyst before pressing. However, gas diffusion layers provided with a catalytically active layer can also be used.
- Gas diffusion layer generally exhibits electron conductivity.
- flat, electrically conductive and acid-resistant structures are used for this purpose. These include, for example, carbon fiber papers, graphitized carbon fiber papers, carbon fiber fabrics, graphitized carbon fiber fabrics and / or sheets rendered conductive by the addition of carbon black.
- connection of the gas diffusion layers with the membrane provided with at least one catalyst layer takes place by pressing the individual components under customary conditions.
- a temperature in the range of 10 to 300 ° C, in particular 20 ° C to 200 ° and with a
- connection of the membrane to the catalyst layer can also be effected by using a gas diffusion layer provided with a catalyst layer.
- a membrane-electrode assembly of a membrane without catalyst layer and two provided with a catalyst layer gas diffusion layers arise.
- a membrane electrode assembly according to the invention shows a surprisingly high power density. According to a particular embodiment afford preferred
- Membrane electrode units have a current density of at least 0.05 A / cm 2 , preferably 0.1 A / cm 2 , more preferably 0.2 A / cm 2 .
- This current density is in operation with pure hydrogen at the anode and air (about 20 vol .-% oxygen, about 80 vol .-% nitrogen) at the cathode at atmospheric pressure (absolute 1013 mbar, with open cell output) and 0.6V Cell voltage measured.
- particularly high temperatures in the range of 150-200 ° C, preferably 160-180 ° C, in particular of 170 ° C can be used.
- the MEU according to the invention can also be operated in the temperature range below 100 ° C., preferably at 50-90 ° C., in particular at 80 ° C. At these temperatures, the MEE exhibits a current density of at least 0.02 A / cm 2 , preferably of at least 0.03 A / cm 2 and more preferably of 0.05 A / cm 2 measured at a voltage of 0.6 V below the otherwise above conditions.
- the aforementioned power densities can be achieved even with low stoichiometry of the fuel gas.
- the stoichiometry is less than or equal to 2, preferably less than or equal to 1.5, most preferably less than or equal to 1.2.
- the oxygen stoichiometry is less than or equal to 3, preferably less than or equal to 2.5 and particularly preferably less than or equal to 2.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005051887A DE102005051887A1 (de) | 2005-10-29 | 2005-10-29 | Membran für Brennstoffzellen, enthaltend Polymere, die Phosphonsäure-und/oder Sulfonsäuregruppen umfassen, Membran-Elektroden-Einheit und deren Anwendung in Brennstoffzellen |
| PCT/EP2006/010388 WO2007048636A2 (de) | 2005-10-29 | 2006-10-28 | Membran für brennstoffzellen, enthaltend polymere, die phosphonsäure- und/oder sulfonsäuregruppen umfassen, membran-elektroden-einheit und deren anwendung in brennstoffzellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1949478A2 true EP1949478A2 (de) | 2008-07-30 |
Family
ID=37912763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06806595A Withdrawn EP1949478A2 (de) | 2005-10-29 | 2006-10-28 | Membran für brennstoffzellen, enthaltend polymere, die phosphonsäure- und/oder sulfonsäuregruppen umfassen, membran-elektroden-einheit und deren anwendung in brennstoffzellen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20090169955A1 (de) |
| EP (1) | EP1949478A2 (de) |
| JP (1) | JP2010508619A (de) |
| KR (1) | KR20080063378A (de) |
| CN (1) | CN101300701B (de) |
| CA (1) | CA2627273A1 (de) |
| DE (1) | DE102005051887A1 (de) |
| RU (1) | RU2008121065A (de) |
| WO (1) | WO2007048636A2 (de) |
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| CA2478530A1 (en) * | 2002-03-06 | 2003-09-12 | Pemeas Gmbh | Proton-conducting electrolyte membrane with low methanol permeability and its use in fuel cells |
| KR100938627B1 (ko) | 2007-11-30 | 2010-01-26 | 한국화학연구원 | 술폰산 및 포스폰산이 함유된 수소이온 전도성 공중합체,그의 제조방법, 그로부터 제조된 고분자 전해질 막, 이를이용한 막-전극 접합체 및 이를 채용한 고분자 전해질 막연료전지 |
| US7989115B2 (en) * | 2007-12-14 | 2011-08-02 | Gore Enterprise Holdings, Inc. | Highly stable fuel cell membranes and methods of making them |
| JP5305678B2 (ja) * | 2008-02-07 | 2013-10-02 | 株式会社東芝 | 非水電解液電池及び組電池 |
| KR101019581B1 (ko) * | 2008-11-10 | 2011-03-08 | 한국에너지기술연구원 | 고분자 전해질 연료전지용 수용성 모노머에 의해 가교된 고분자 전해질 복합막 및 그 제조방법 |
| KR101233384B1 (ko) * | 2009-09-10 | 2013-02-14 | 제일모직주식회사 | 연료전지용 고분자 막 조성물, 이로부터 제조되는 고분자 막, 및 이를 포함하는 막-전극 접합체 및 연료전지 |
| EP2553751A4 (de) | 2010-04-01 | 2014-07-16 | Trenergi Corp | Hochtemperatur-membranelektrodenanordnung mit hoher leistungsdichte und herstellungsverfahren dafür |
| CA2801005C (en) * | 2010-06-07 | 2019-10-29 | Cellera, Inc. | Chemical bonding for catalyst/membrane surface adherence in membrane-electrolyte fuel cells |
| JP5776095B2 (ja) * | 2010-11-16 | 2015-09-09 | 日東電工株式会社 | 耐酸化性に優れたプロトン伝導性高分子電解質膜およびその製造方法 |
| GB201112382D0 (en) | 2011-07-19 | 2011-08-31 | Fujifilm Mfg Europe Bv | Curable compositions and membranes |
| CN103193795B (zh) * | 2013-04-03 | 2013-12-11 | 四川省惠达药业有限公司 | 一种阿莫西林钠与舒巴坦钠的药物组合物 |
| CN105017751A (zh) * | 2015-07-06 | 2015-11-04 | 天津师范大学 | 骨架含有膦酸和磺酸基团的聚合物共混物及其制备方法 |
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| CN119591768B (zh) * | 2023-09-08 | 2026-01-23 | 中国石油天然气股份有限公司 | 一种有机聚合物载体、z-n催化剂及其制备方法与应用 |
| CN118852530B (zh) * | 2024-07-04 | 2026-02-13 | 湖北工程学院 | 一种膦酸甘油酯基聚合物及其制备方法和应用 |
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- 2005-10-29 DE DE102005051887A patent/DE102005051887A1/de not_active Withdrawn
-
2006
- 2006-10-28 KR KR1020087010425A patent/KR20080063378A/ko not_active Withdrawn
- 2006-10-28 JP JP2008537011A patent/JP2010508619A/ja active Pending
- 2006-10-28 CA CA002627273A patent/CA2627273A1/en not_active Abandoned
- 2006-10-28 RU RU2008121065/09A patent/RU2008121065A/ru not_active Application Discontinuation
- 2006-10-28 CN CN2006800405887A patent/CN101300701B/zh not_active Expired - Fee Related
- 2006-10-28 US US12/091,851 patent/US20090169955A1/en not_active Abandoned
- 2006-10-28 EP EP06806595A patent/EP1949478A2/de not_active Withdrawn
- 2006-10-28 WO PCT/EP2006/010388 patent/WO2007048636A2/de not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| US20090169955A1 (en) | 2009-07-02 |
| CA2627273A1 (en) | 2007-05-03 |
| JP2010508619A (ja) | 2010-03-18 |
| RU2008121065A (ru) | 2009-12-10 |
| CN101300701B (zh) | 2010-09-01 |
| CN101300701A (zh) | 2008-11-05 |
| WO2007048636A2 (de) | 2007-05-03 |
| DE102005051887A1 (de) | 2007-05-03 |
| KR20080063378A (ko) | 2008-07-03 |
| WO2007048636A3 (de) | 2007-07-26 |
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