EP1907448A1 - Verfahren zur herstellung eines blockcopolymeren aus polyimiden und verwendung des blockcopolymeren zur herstellung von pulvern und formteilen - Google Patents
Verfahren zur herstellung eines blockcopolymeren aus polyimiden und verwendung des blockcopolymeren zur herstellung von pulvern und formteilenInfo
- Publication number
- EP1907448A1 EP1907448A1 EP06776203A EP06776203A EP1907448A1 EP 1907448 A1 EP1907448 A1 EP 1907448A1 EP 06776203 A EP06776203 A EP 06776203A EP 06776203 A EP06776203 A EP 06776203A EP 1907448 A1 EP1907448 A1 EP 1907448A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- block copolymer
- polyimide
- block
- carboxylic acid
- 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- Withdrawn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
- 229920001400 block copolymer Polymers 0.000 title claims abstract description 63
- 239000004642 Polyimide Substances 0.000 title claims abstract description 35
- 229920001721 polyimide Polymers 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000465 moulding Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 title description 17
- 238000000034 method Methods 0.000 claims abstract description 65
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 238000000748 compression moulding Methods 0.000 claims abstract description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 31
- 238000002360 preparation method Methods 0.000 claims description 29
- 239000002904 solvent Substances 0.000 claims description 26
- 239000004952 Polyamide Substances 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 16
- 229920002647 polyamide Polymers 0.000 claims description 16
- 229920005575 poly(amic acid) Polymers 0.000 claims description 14
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009835 boiling Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 6
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000010137 moulding (plastic) Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 2
- 239000000546 pharmaceutical excipient Substances 0.000 claims 2
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 11
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 11
- 150000001412 amines Chemical class 0.000 description 10
- 125000003118 aryl group Chemical group 0.000 description 9
- 239000000945 filler Substances 0.000 description 9
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 8
- 150000004985 diamines Chemical class 0.000 description 7
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 7
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 7
- 150000008064 anhydrides Chemical group 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 150000004984 aromatic diamines Chemical class 0.000 description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- -1 tetracarboxylic anhydride Chemical class 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 2
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000011326 mechanical measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 2
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- RLYCRLGLCUXUPO-UHFFFAOYSA-N 2,6-diaminotoluene Chemical compound CC1=C(N)C=CC=C1N RLYCRLGLCUXUPO-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- QLZHNIAADXEJJP-UHFFFAOYSA-N Phenylphosphonic acid Chemical compound OP(O)(=O)C1=CC=CC=C1 QLZHNIAADXEJJP-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001944 continuous distillation Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000003949 imides Chemical group 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 150000003513 tertiary aromatic amines Chemical class 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1003—Preparatory processes
- C08G73/1007—Preparatory processes from tetracarboxylic acids or derivatives and diamines
- C08G73/1028—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
-
- 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
Definitions
- the invention relates to a process for the preparation of pulverf ⁇ rmigen polyimide-polyimide block copolymers and compounds prepared therefrom, which can be pressed by means of direct-forming and hot compression molding process molding into moldings.
- DE 699 13 969 (3M) relates to a process for the preparation of porous calcined polyimide.
- the porosity of the plastic molding makes it possible to adapt by doping the physical properties of the plastic molding, such as dielectric constant.
- the pores are created by thermal decomposition of polyethylene glycol.
- DE 697 28 384 (Teijin) describes a composition comprising a non-crystalline polyimide and an aromatic polyester.
- the polyimide serves to improve the properties of the polyester, such as moldability and gas tightness.
- U.S. Patent 5,773,559 Japan Synthetic Rubber Co. describes the preparation of a block copolymer of two different polyamic acid units wherein the first polyamic acid unit is formed from a tetracarboxylic acid and a diamine and has free amino end groups, and the second polyamic acid unit also a tetracarboxylic acid and a diamine is formed and has free carboxylic acid end groups. These two different polyamide carboxylic acid units are converted to the polyamic acid block copolymer. After imidization, a polyimide block copolymer is obtained.
- the process can also be carried out analogously with polyimide block copolymers and then leads to the higher molecular weight polyimide block copolymer without additional imidization step.
- the process may further be capped with diisocyanates Amines can be carried out, as well as the process can be carried out with polyamides and polyimides.
- the polyimide block copolymers formed are still in dissolved form even after the imidization step and must be precipitated in a further step.
- the block copolymers thus obtained are used in liquid crystal formulations.
- Vespel ® and its derivatives and Upimol ® have the following disadvantages: the powder is not available on the open market,
- the semifinished product can only be produced by the hot-isostatic pressing process, the production is therefore complicated and expensive
- the manufacturing process is a complex multi-step process.
- Sintimid ® higher notched impact strength, better surface quality, smaller edge radii, higher machining speed for milling, turning or drilling
- the product should be allowed to sinter without gas bubbles and inclusions
- the direct-forming method should also be able to be used,
- the surface of the contained plastic molding should have a high quality
- the edges of the plastic molding should have small radii of curvature and be without breakouts.
- Ri and R 3 have the following meanings:
- R 2 and R 4 have the following meanings:
- R 1 and R 3 are the following:
- R 2 and R 4 are the following:
- Block 1 with residues Rj and R 2 has a softening point which enables processing of the block copolyimide by the hot compression molding method while allowing higher rigidity and mechanical strength of the material.
- the softening point is determined by the determination of the modulus of elasticity by means of a dynamic mechanical measurement. The drop in the modulus of elasticity should be so great that the applied pressure is sufficient for a certain exposure time that shaping in the hot compression molding process can be achieved.
- Block 2 with the radicals R 3 and R 4 consists of an insoluble polyimide without softening point and at the same time absorbs the energy under impact stress and mechanical processing.
- the production and the coupling of the individual blocks can be done in different ways.
- a soluble polyimide having terminal anhydride groups is prepared via the isocyanate route.
- the block 2 consists of a polyamide acid with terminal amines. These two blocks can react with each other to form a polyimide-polyamic acid block copolymer.
- aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diisocyanate or mixtures of two or more diisocyanates in an aprotic dipolar solvent at about 50 ° C to 15O 0 C to an oligomeric soluble polyimide which has dicarboxylic acid anhydrides as end groups.
- a basic catalyst is used, for example tertiary aromatic amines, alkali metal or alkaline earth metal hydroxides or alkoxides or mixtures of the abovementioned compounds.
- Aprotic dipolar solvents may be, for example, inter alia N, N-dimethylformamide, N, N-dimethylacetamide or N-methylpyrolidone or mixtures of the abovementioned solvents.
- aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diamine or mixtures of two or more diamines in an aprotic dipolar solvent such as N, N-dimethylformamide, N 5 N- dimethylacetamide or N Methylpyrolidone at about 0 ° C to 30 ° C to an oligomeric soluble polyamide carboxylic acid of the formula (III), which has amines as end groups.
- aromatic dipolar solvent such as N, N-dimethylformamide, N 5 N- dimethylacetamide or N Methylpyrolidone
- R 3, R 4 and m have the abovementioned meaning.
- oligomeric block 2 having amino end groups (formula III) is added the solution of block 1 (formula II).
- the still free anhydrides of the block 1 react with the still free amines of the block 2 to form a high molecular weight polyimide-polyamic acid block copolymer of the general formula (IV). It is important that the number of free amino end groups corresponds to that of free carboxylic anhydride end groups, so that a high molecular weight can be achieved.
- the block lengths and the percentage composition of the blocks can vary, n and m can move in the range of 2 to 20, the molar ratio of block 1 to block 2 can be between 10 to 90 and 90 to 10.
- block 1 is also prepared as a polyamic acid containing amino end groups.
- Block 2 is prepared as in process 1 as polyamide carboxylic acid with amino end groups.
- an aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diamine are used or mixtures of two or more diamines in an aprotic dipolar solvent at about 0 ° C to 30 ° C to an oligomeric soluble polyamic acid of formula (V) to which has amines as end groups.
- Ri, R 2 and n have the abovementioned meaning therein.
- Block Copolymer Preparation Method 2 Preparation Block 2: To prepare the second block, an aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diamine or mixtures of two or more diamines in an aprotic dipolar solvent at about 0 ° C 30 ° C to an oligomeric soluble polyamide carboxylic acid of formula (VI) to which has amines as end groups.
- an aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diamine or mixtures of two or more diamines in an aprotic dipolar solvent at about 0 ° C 30 ° C to an oligomeric soluble polyamide carboxylic acid of formula (VI) to which has amines as end groups.
- the solution of the oligomeric block 1 having amino end groups (formula V) and those of the oligomeric block 2 having amino end groups (formula VI) are combined.
- the blocks are coupled by adding an aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides.
- the still free amines of blocks 1 and 2 react with the tetracarboxylic anhydride or the mixtures of 2 or more tetracarboxylic dianhydrides to form a high molecular weight polyamic acid-polyamic acid polycarboxylic acid block copolymer of formula VII. It is important that the number of free amino end groups corresponds to that of the dicarboxylic acid anhydride groups high molecular weight can be achieved.
- Ri, R 2 , R 3 and R 4 and n, m and x have the abovementioned meaning.
- the block lengths and the percentage composition of the blocks can vary, n and m can move in the range of 2 to 20, the molar
- Ratio of block 1 to block 2 can be between 10 to 90 and 90 to 10.
- block 1 is produced as polyamic acid with dicarboxylic anhydride end groups.
- Block 2 is prepared as in polyamides having amino end groups as in processes 1 and 2.
- the solution of Block 1 is added.
- the anhydride groups of block 1 react with the amines of block 2 to give a polyamidecarboxylic acid-polyamide-carboxylic acid block copolymer.
- Block Copolymer Preparation Method 3 Production of Block 1:
- Ri, R 2 and n have the abovementioned meaning therein.
- Block Copolymer Preparation Method 3 Preparation of Block 2:
- an aromatic tetracarboxylic dianhydride or mixtures of two or more tetracarboxylic dianhydrides with an aliphatic or aromatic diamine or mixtures of two or more diamines in an aprotic dipolar solvent at about 0.degree. C. to 30.degree. C. is added to give an oligomerically soluble polyamidecarboxylic acid the formula IX, which has amines as end groups.
- Block Copolymer Preparation Process 3 Preparation of High Molecular Weight Polyamic Acid Polyamide Carboxylic Acid Block Copolymer:
- the solution of the oligomeric block 1 having dicarboxylic acid anhydride end groups (formula VIII) and those of the oligomeric block 2 having amino end groups (formula IX) are combined.
- the coupling of the blocks takes place by the reaction of the free anhydride end groups of block 1 with the free amine end groups of block 2.
- a high molecular weight polyamidecarboxylic acid-polyamidecarboxylic acid block copolymer of formula X is formed. It is important that the number of free amino end groups corresponds to that of dicarboxylic acid anhydride groups a high molecular weight can be achieved.
- Ri, R 2 , R 3 and R 4 and n, m and x have the abovementioned meaning.
- the block lengths and the percentage composition of the blocks can vary, n and m can move in the range of 2 to 20, the molar Ratio of block 1 to block 2 can be between 10 to 90 and 90 to 10. In this process, a strictly alternating block copolymer of type AB is obtained.
- the polyamidecarboxylic acid portion of the high molecular weight polyamidecarboxylic acid polyimide block copolymers or polyamidecarboxylic acid-polyamidecarboxylic acid block copolymers according to one of the processes 1 to 3 still has to be converted into a polyimide. This is accomplished by a polymer-analogous reaction in a boiling aprotic dipolar solvent. Solvents may be, inter alia, N, N-dimethylformamide, N, N-dimethylacetamide or N-methylpyrolidone. In this reaction, the imide forms from the amide carboxylic acid with elimination of water, thereby becomes insoluble and precipitates out of the solution.
- the boiling point must be between 140 ° C and 210 0 C, preferably between 145 ° C and 180 0 C and most preferably between 150 0 C and 170 ° C.
- the polyamidocarboxylic acid block polymers are introduced into the boiling aprotic dipolar solvent with stirring. This contains an anhydrous acid as a catalyst to catalyze the imidization reaction. Preference is given to using anhydrous mineral acids, for example phosphoric acid or benzenephosphonic acid.
- the block copolyimide of Formula I below precipitates as a fine precipitate with a particle size d50 of 0.4-70 ⁇ m.
- the imidization water resulting from the reaction is preferably removed from the system by simple continuous distillation. In this case, no entraining agent which gives a ternary boiling mixture with water, such as toluene or xylene required. As much solvent is withdrawn from the system that the contents of the reactor remain constant even with continuous supply of polyamide-carboxylic acid block copolymer solution. In contrast to batch operation (heating of a polyamide carboxylic acid in a solvent up to the boiling point), only a small amount of water per unit of time, which can be easily and quickly removed from the system by distillation, is produced by continuous addition.
- Ri, R 2 , R 3 and R 4 and n, m and x have the above significance.
- the powder is present after imidization in a lös ⁇ ngsmittel Anlagenn suspension.
- the powder must be freed from the solvent and the catalyst.
- One way is to evaporate the solvent via spray-drying and then extract the powder with water to remove the catalyst.
- Another way is to displace solvent and catalyst by dilution wash.
- the suspension is mixed with water and filtered off.
- the resulting filter cake or the concentrated suspension is again mixed with water and filtered again. The process is repeated until the solvent and the catalyst are washed out.
- metal mesh, glass frits, tissue filters, and membranes may serve as filter materials.
- the powder suspension or the wet filter cake are then dried by conventional drying methods such as, but not limited to, thin-film evaporators, spray dryers, spray granulators, drying cabinets, horizontal, vertical dryers or heated suction filters. After drying, the material must still be heated to at least 250 ° C, firstly to achieve complete Nachimidmaschine and secondly to ensure separation of volatiles. These would otherwise interfere with the subsequent hot compression molding process.
- the powder produced by the process according to the invention is direct forming-capable and can also be processed by the hot compression molding process.
- a powder obtained according to Example 4 has the following properties:
- a molded article was produced from a polyimide-polyimide block copolymer prepared according to Example 4.
- the shaped body has (in unfilled state) the following properties:
- the molded body produced by the hot compression molding process from the polyimide-polyimide block copolymer prepared according to Example 4 has the following improved properties compared to SINTIMID® and Vespel®:
- the mechanical strengths are superior to those of Vespel®.
- the flexural strength at 177 MPa is significantly higher than that of Vespel® at 110 MPa.
- the stiffness of the material is also improved (polymer according to the invention: 3750 MPa, Vespel®: 3100 MPa).
- the Charpy impact strength (5.9 kJ / m2) is also clearly superior to Vespel® (3.5 kJ / m2).
- SINTIMID® the machining behavior is significantly improved.
- the polymer semifinished product according to the invention can be treated much faster with better edge and surface quality.
- FIG. 1 images of processed semifinished products of SINTIMID® (referred to as P84 HT) and the polyimide-polyimide block copolymers prepared according to Example 4 (designated as P84 NT in the photograph) in FIG. 1, FIG. 2 and FIG Example 4 produced polyimide-polyimide block copolymer can be processed without breaking the edges (see comparison in Figure 3) quickly with high surface quality (groove formation in turning in Figure 1, while SINTIMID® results in only one broken surface, see Figure 2)
- Figure 1 shows the face and edge of a machined surface of a molded article made of the polymer prepared by the process of the present invention
- the end face and edge is machined by means of turning a surface of a molded article prepared from SINTIMID ® (P84HT);
- FIG. 3 shows the surface and edge of a surface of a milling machined surface
- Molded part made of the prepared by the novel process, polymer (P84 NT, below) and SINTIMID ® (P84 HAS, above);
- FIG. 4 shows graphite particles coated with the one according to the invention
- fillers are suitable: polytetrafluoroethylene, graphite, molybdenum disulfide, boron nitride, metal oxides, carbon and glass fibers, calcium carbonate, barium sulfate, metals, silicon dioxide and mixtures of the abovementioned substances.
- the amount of filler or filler mixture may be between 1% and 99%, based on the amount of polymer.
- the compounds can be produced according to 3 different processes.
- the filler is already incorporated in this process in the imidization step.
- the filler is suspended in the boiling solvent.
- Suitable solvents are the abovementioned aprotic, polar solvents, for example N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrolidone, individually or in mixtures. Imidization even with some fillers (e.g., graphite, molybdenum disulfide, carbon fibers) achieves a coating with the polymer of this invention. This improves the adhesion between filler and matrix and increases the mechanical strengths of the compounds. As an example, see FIG. 4.
- the filler can be stirred into the aqueous suspension.
- the separation and drying processes described above produce a very homogeneous compound.
- a stirred reactor is charged with 24 kg of N, N-dimethylformamide and 7.0 kg (21.73 mol) of benzophenone tetracarboxylic dianhydride at room temperature with exclusion of moisture.
- 25 g (0.245 mol) of 1, 4-diazabicyclo [2.2.2] octane and 5 ml of water are added. Thereafter, the reaction mixture is heated to about 8O 0 C.
- Lupranat ® VP9227 commercial mixture of 4,4'-diisocyanatodiphenylmethane, 2,6-toluene diisocyanate and 2,4-toluene diisocyanate
- the resulting carbon dioxide is released through the radiator.
- the reaction mixture is allowed to react further and then cooled.
- a stirred reactor is charged with 24 kg of N, N-dimethylformamide and 7.0 kg (21.73 mol) of benzophenone tetracarboxylic dianhydride at room temperature with exclusion of moisture. After dissolution, a mixture of 1.372 kg of 2,4-diaminotoluene, 0.342 kg of 2,6-diaminotoluene and 0.696 kg of 4,4'-diaminodiphenylmethane is added in portions. After the end of the addition, the reaction mixture is left to react.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005034969A DE102005034969A1 (de) | 2005-07-22 | 2005-07-22 | Verfahren zur Herstellung eines Blockcopolymeren aus Polyimiden und Verwendung des Blockcopolymeren zur Herstellung von Pulvern und Formteilen |
| PCT/EP2006/006840 WO2007009652A1 (de) | 2005-07-22 | 2006-07-13 | Verfahren zur herstellung eines blockcopolymeren aus polyimiden und verwendung des blockcopolymeren zur herstellung von pulvern und formteilen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1907448A1 true EP1907448A1 (de) | 2008-04-09 |
Family
ID=37075276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06776203A Withdrawn EP1907448A1 (de) | 2005-07-22 | 2006-07-13 | Verfahren zur herstellung eines blockcopolymeren aus polyimiden und verwendung des blockcopolymeren zur herstellung von pulvern und formteilen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7812099B2 (de) |
| EP (1) | EP1907448A1 (de) |
| JP (1) | JP5468256B2 (de) |
| KR (1) | KR101357101B1 (de) |
| CN (1) | CN101228208B (de) |
| AU (1) | AU2006272039B2 (de) |
| DE (1) | DE102005034969A1 (de) |
| TW (1) | TWI338700B (de) |
| WO (1) | WO2007009652A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101115058B1 (ko) * | 2008-07-09 | 2012-02-13 | 주식회사 엘지화학 | 폴리이미드-폴리아믹산 공중합체, 이의 제조방법, 이를포함하는 감광성 조성물 및 이에 의해 제공된 보호막 |
| JP2013001872A (ja) * | 2011-06-20 | 2013-01-07 | Hitachi Cable Ltd | ポリアミドイミド樹脂絶縁塗料、絶縁電線、及びコイル |
| NO3083761T3 (de) * | 2013-12-17 | 2018-03-10 | ||
| TWI598294B (zh) * | 2013-12-17 | 2017-09-11 | 財團法人工業技術研究院 | 聚醯胺亞醯胺高分子、石墨膜及其製備方法 |
| ES2706228T3 (es) * | 2013-12-17 | 2019-03-27 | Evonik Fibres Gmbh | Polvo de poliimida con elevada estabilidad termooxidativa |
| CN105040512A (zh) * | 2015-09-09 | 2015-11-11 | 长春高琦聚酰亚胺材料有限公司 | 一种聚酰亚胺纸模塑制品及其制备方法 |
| KR20170040998A (ko) * | 2015-10-06 | 2017-04-14 | 주식회사 페코텍 | 진공흡착노즐의 제조방법 |
| EP3473659A1 (de) | 2017-10-17 | 2019-04-24 | Evonik Degussa GmbH | Polymere anionen leitende membrane |
| CN110028788B (zh) * | 2018-01-11 | 2021-11-26 | 洛阳轴承研究所有限公司 | 一种聚酰亚胺复合材料、多孔聚酰亚胺保持架及其制备方法、轴承 |
| WO2019212926A1 (en) | 2018-05-01 | 2019-11-07 | 3M Innovative Properties Company | Platinum-coated polyimide particles and articles thereof |
| EP3838883B1 (de) | 2019-12-16 | 2023-07-12 | Evonik Fibres GmbH | Verfahren zur oxidation eines a 1,1-bis-(3,4-dimethylphenyl)-alkans zu 3,3',4,4'-benzophenontetracarbonsäure |
| EP4538354A1 (de) | 2023-10-13 | 2025-04-16 | Evonik Operations GmbH | Pi-feinstpulver als schmiermitteladditive |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422061A (en) | 1963-10-18 | 1969-01-14 | Du Pont | Coalesceable polyimide powders from a polycarbocylic aromatic dianhydride and phenylene diamine |
| BE790556A (fr) | 1971-10-26 | 1973-04-25 | Rhone Poulenc Sa | Copolymeres de polyimides a groupements hydroxyles |
| DE3124401A1 (de) * | 1981-06-22 | 1983-01-27 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von pulverfoermigem polyimid und seine verwendung |
| JPS61241326A (ja) * | 1985-04-18 | 1986-10-27 | Nitto Electric Ind Co Ltd | ポリイミド粉末およびその製法 |
| JPS62161831A (ja) * | 1986-01-10 | 1987-07-17 | Toray Ind Inc | ポリイミドブロツク共重合体の製造方法 |
| ATA251486A (de) * | 1986-09-19 | 1988-03-15 | Greber Gerd | Verfahren zur herstellung von neuen loeslichen und/oder schmelzbaren polyamidimid-polyimidblockcopolymeren |
| US4929658A (en) * | 1988-04-14 | 1990-05-29 | Nissan Chemical Industries Ltd. | Composition for liquid crystal aligning agent |
| US4923954A (en) * | 1988-12-23 | 1990-05-08 | Ethyl Corporation | Production of particulate polyimide polymers |
| US5202412A (en) * | 1990-10-02 | 1993-04-13 | E. I. Du Pont De Nemours And Company | Polyimide copolymer precursors |
| JPH0525274A (ja) * | 1991-07-18 | 1993-02-02 | Sekiyu Sangyo Kasseika Center | 反応性ポリイミドブロツク共重合体 |
| US5179153A (en) * | 1991-09-09 | 1993-01-12 | E. I. Du Pont De Nemours And Company | Wear resistant polyimide composition |
| EP0604319B1 (de) | 1992-12-25 | 1999-04-28 | Hiroshi Itatani | Polyamid-Lösungszusammensetzungen und Verfahren zur Herstellung |
| JP3126577B2 (ja) * | 1993-12-02 | 2001-01-22 | パーカー加工株式会社 | ポリイミドブロック共重合体の製造方法及びその溶液組成物 |
| JPH08100061A (ja) * | 1994-09-28 | 1996-04-16 | Hitachi Chem Co Ltd | ブロックコポリマ、その製造法、液晶配向材料、液晶配向膜、液晶挾持基板及び液晶表示素子 |
| JPH08132534A (ja) * | 1994-11-09 | 1996-05-28 | Kanegafuchi Chem Ind Co Ltd | 芳香族ポリイミド樹脂の成形方法 |
| JP3257325B2 (ja) * | 1995-01-31 | 2002-02-18 | ジェイエスアール株式会社 | ポリイミド系共重合体の製造方法、薄膜形成剤、並びに液晶配向膜の製造方法 |
| JP3521589B2 (ja) * | 1995-12-22 | 2004-04-19 | Jsr株式会社 | ポリイミド系ブロック共重合体およびその製造方法、並びに液晶配向膜 |
| JPH10158510A (ja) * | 1996-11-22 | 1998-06-16 | E I Du Pont De Nemours & Co | 射出成形可能なポリイミド樹脂組成物の製造方法および成形品の製造方法 |
| JP4281241B2 (ja) * | 2000-10-31 | 2009-06-17 | 宇部興産株式会社 | ポリイミド粉末の製造法、ポリイミド粉末、ポリイミド粉末成形体およびその製造法 |
| JP3897576B2 (ja) * | 2001-10-12 | 2007-03-28 | 株式会社ピーアイ技術研究所 | ケトン及び/又はエーテルの溶媒に可溶なブロック共重合ポリイミド組成物及びその製造法 |
| CN1174026C (zh) * | 2001-12-25 | 2004-11-03 | 中国科学院大连化学物理研究所 | 一种制备聚酰亚胺模塑粉的方法 |
| TW200302253A (en) * | 2002-01-15 | 2003-08-01 | Pi R & D Co Ltd | Solvent-soluble block copolyimide composition, process for producing the same, positive photosensitive polyimide composition and positive photosensitive block copolyimide ink composition |
-
2005
- 2005-07-22 DE DE102005034969A patent/DE102005034969A1/de not_active Withdrawn
-
2006
- 2006-07-13 CN CN2006800268396A patent/CN101228208B/zh not_active Expired - Fee Related
- 2006-07-13 WO PCT/EP2006/006840 patent/WO2007009652A1/de not_active Ceased
- 2006-07-13 AU AU2006272039A patent/AU2006272039B2/en not_active Ceased
- 2006-07-13 US US11/989,032 patent/US7812099B2/en not_active Expired - Fee Related
- 2006-07-13 EP EP06776203A patent/EP1907448A1/de not_active Withdrawn
- 2006-07-13 KR KR1020087001530A patent/KR101357101B1/ko not_active Expired - Fee Related
- 2006-07-13 JP JP2008521851A patent/JP5468256B2/ja not_active Expired - Fee Related
- 2006-07-18 TW TW095126252A patent/TWI338700B/zh not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007009652A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080031744A (ko) | 2008-04-10 |
| JP5468256B2 (ja) | 2014-04-09 |
| AU2006272039B2 (en) | 2012-02-23 |
| JP2009503131A (ja) | 2009-01-29 |
| WO2007009652A1 (de) | 2007-01-25 |
| CN101228208B (zh) | 2012-01-11 |
| DE102005034969A1 (de) | 2007-02-08 |
| TW200712097A (en) | 2007-04-01 |
| US7812099B2 (en) | 2010-10-12 |
| CN101228208A (zh) | 2008-07-23 |
| TWI338700B (en) | 2011-03-11 |
| AU2006272039A1 (en) | 2007-01-25 |
| KR101357101B1 (ko) | 2014-02-06 |
| US20090143541A1 (en) | 2009-06-04 |
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