CN101007787A - 含三嗪组成部分的二胺化合物 - Google Patents
含三嗪组成部分的二胺化合物 Download PDFInfo
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- CN101007787A CN101007787A CNA2006101609455A CN200610160945A CN101007787A CN 101007787 A CN101007787 A CN 101007787A CN A2006101609455 A CNA2006101609455 A CN A2006101609455A CN 200610160945 A CN200610160945 A CN 200610160945A CN 101007787 A CN101007787 A CN 101007787A
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- liquid crystal
- diamine compound
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- polyamic acid
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- -1 Diamine compound Chemical class 0.000 title claims abstract description 57
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 230000014509 gene expression Effects 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 47
- 229920005575 poly(amic acid) Polymers 0.000 abstract description 45
- 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 abstract description 33
- 125000000962 organic group Chemical group 0.000 abstract description 11
- 125000006158 tetracarboxylic acid group Chemical group 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 36
- 239000002253 acid Substances 0.000 description 24
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- 150000001412 amines Chemical class 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 11
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- 239000000758 substrate Substances 0.000 description 11
- 125000002723 alicyclic group Chemical group 0.000 description 10
- 125000003118 aryl group Chemical group 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
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- 150000004985 diamines Chemical class 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 6
- LYDIBNKZPHCPFS-UHFFFAOYSA-N 4-[(4-hexadecyl-1,3,5-triazin-2-yl)oxy]benzene-1,3-diamine Chemical class CCCCCCCCCCCCCCCCC1=NC=NC(OC=2C(=CC(N)=CC=2)N)=N1 LYDIBNKZPHCPFS-UHFFFAOYSA-N 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
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- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
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- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 2
- JPSKCQCQZUGWNM-UHFFFAOYSA-N 2,7-Oxepanedione Chemical compound O=C1CCCCC(=O)O1 JPSKCQCQZUGWNM-UHFFFAOYSA-N 0.000 description 2
- XUSNPFGLKGCWGN-UHFFFAOYSA-N 3-[4-(3-aminopropyl)piperazin-1-yl]propan-1-amine Chemical compound NCCCN1CCN(CCCN)CC1 XUSNPFGLKGCWGN-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-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
- LEZJRASJLRTQPN-UHFFFAOYSA-N CCCCCCCCCCCCCCCCC1=NC=NC(Cl)=N1 Chemical class CCCCCCCCCCCCCCCCC1=NC=NC(Cl)=N1 LEZJRASJLRTQPN-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- FNOXRUFNKRELDR-UHFFFAOYSA-N [O].NC1=C(C=CC=C1)N Chemical compound [O].NC1=C(C=CC=C1)N FNOXRUFNKRELDR-UHFFFAOYSA-N 0.000 description 2
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- 150000004984 aromatic diamines Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
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- 125000001424 substituent group Chemical group 0.000 description 2
- FIDRAVVQGKNYQK-UHFFFAOYSA-N 1,2,3,4-tetrahydrotriazine Chemical compound C1NNNC=C1 FIDRAVVQGKNYQK-UHFFFAOYSA-N 0.000 description 1
- HNTGIJLWHDPAFN-UHFFFAOYSA-N 1-bromohexadecane Chemical compound CCCCCCCCCCCCCCCCBr HNTGIJLWHDPAFN-UHFFFAOYSA-N 0.000 description 1
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical class OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 1
- QQGYZOYWNCKGEK-UHFFFAOYSA-N 5-[(1,3-dioxo-2-benzofuran-5-yl)oxy]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(OC=2C=C3C(=O)OC(C3=CC=2)=O)=C1 QQGYZOYWNCKGEK-UHFFFAOYSA-N 0.000 description 1
- BZUNJUAMQZRJIP-UHFFFAOYSA-N CPDA Natural products OCCCCCCCCCCCCCCC(O)=O BZUNJUAMQZRJIP-UHFFFAOYSA-N 0.000 description 1
- WVOLTBSCXRRQFR-SJORKVTESA-N Cannabidiolic acid Natural products OC1=C(C(O)=O)C(CCCCC)=CC(O)=C1[C@@H]1[C@@H](C(C)=C)CCC(C)=C1 WVOLTBSCXRRQFR-SJORKVTESA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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- WVOLTBSCXRRQFR-DLBZAZTESA-N cannabidiolic acid Chemical compound OC1=C(C(O)=O)C(CCCCC)=CC(O)=C1[C@H]1[C@H](C(C)=C)CCC(C)=C1 WVOLTBSCXRRQFR-DLBZAZTESA-N 0.000 description 1
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- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 230000002045 lasting effect Effects 0.000 description 1
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- GISJHCLTIVIGLX-UHFFFAOYSA-N n-[4-[(4-chlorophenyl)methoxy]pyridin-2-yl]-2-(2,6-difluorophenyl)acetamide Chemical compound FC1=CC=CC(F)=C1CC(=O)NC1=CC(OCC=2C=CC(Cl)=CC=2)=CC=N1 GISJHCLTIVIGLX-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
- C07D251/16—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom
- C07D251/20—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom with no nitrogen atoms directly attached to a ring carbon atom
-
- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- 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
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/30—Only oxygen atoms
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- 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
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Abstract
本发明提供一种含三嗪组成部分的二胺化合物,由右通式1表示,其中,A是直接键、-O-或-COO-;B是直接键、-O-、-COO-、-CONH-或-OCO-;C是C1-30直链、支链或环状一价有机基团或它们的结合形式。还提供通过该二胺化合物和四羧酸二酐反应制得的聚酰胺酸和通过涂敷和酰亚胺化该聚酰胺酸制得的液晶配向膜。该液晶配向膜具有良好的耐热性、高的可见光区域透明性和改善的电压保持率。而且,预倾角可在很宽范围内容易地进行控制。
Description
本发明是2004年1月20日申请的发明名称为“含三嗪基团的二胺化合物、从该二胺化合物合成制得的聚酰胺酸和从该聚酰胺酸制得的液晶配向膜”的第200480000704.3号发明专利申请的分案申请。
技术领域
本发明涉及含三嗪组成部分的二胺化合物、由该二胺化合物制得的聚酰胺酸和由该聚酰胺酸制得的液晶配向膜(alignmentfilm)。具体地说,本发明涉及含特定三嗪组成部分的二胺化合物、通过使一种含该二胺化合物的二胺成分(a)和一种酸二酐(aciddianhydride)(b)反应制得的聚酰胺酸和通过酰亚胺化(imidizing)该聚酰胺酸制得的液晶配向膜。
背景技术
常规的用于液晶配向膜的聚酰亚胺树脂,是通过芳族酸的二酸酐如均苯四酸二酐(PMDA)和联苯四酸二酐(BPDA)、和芳族二胺如对苯二胺(p-PDA)、间苯二胺(m-PDA)、4,4-亚甲基二苯胺(MDA)、2,2-二氨基苯基六氟丙烷(HFDA)、间二氨基苯氧二苯基砜(m-BAPS)、对二氨基苯氧二苯基砜(p-BAPS)、4,4-二氨基苯氧苯基丙烷(BAPP)、4,4-二氨基苯氧苯基六氟丙烷(HF-BAPP)等的缩聚作用制得的。
由常规的芳族酸二酐和芳族二胺制得的聚酰亚胺液晶配向膜,在热稳定性、耐化学性和机械性能方面是优良的,但是,由于形成一种电子迁移配合物,其光电性能以及透明性和溶解性都很差。为了解决这些问题,日本专利公开第11-84319号公开了一种聚酰亚胺基液晶配向膜,其中引入了脂环族酸二酐单体或脂环族二胺,日本专利公开第06-136122号公开了一种具有提高的液晶预倾角(pretilt angle)和提高的稳定性的聚酰亚胺基液晶配向膜,是通过使用具有侧链的功能二胺或具有侧链的功能酸二酐制得的。
根据本发明人进行的研究,由于常规聚酰亚胺基配向膜使用不适合表面张力和极性的聚酰亚胺以制备高的液晶预倾角,所以,在注射液晶时液晶的可扩散性很差,从而在最终液晶配向膜中产生许多缺陷,且该预倾角的可控范围不能被提高到令人满意的水平。
随着最近对于液晶显示装置需要的不断提高,对于高质量显示装置存在着连续的需求。而且,随着大尺寸液晶显示装置技术取得的显著进步,越来越需要具有高生产能力的配向膜。因此,本领域中急切需要开发这种一种液晶配向膜,它能在一个很宽的角度范围容易地控制液晶的预倾角,当应用于LCD制作工艺时没有缺陷,并且表现出优良的光电性能、高的可靠性和优异的液晶可扩散性。
发明内容
为了解决上述这些问题,本发明人进行了认真深入的研究。其结果,本发明人发现,通过一种聚酰胺酸(它是通过使用一种含高极性三嗪组成部分的新型特定二胺化合物制得的)的酰亚胺化制得的配向膜,能够使液晶的想要预倾角在1-90°范围之内,并且具有优良的液晶配向性能、优良的光电性能、优异的适印性和优异的液晶扩散性,从而实现了本发明。
因此,本发明的一个特征,是提供了一种具有优异适印性、优异液晶扩散性、高的液晶预倾角且应用于LCD制作工艺时没有缺陷的液晶配向膜,它是通过使用一种新型特定三嗪基二胺化合物制得的。
按照本发明所述特征,提供了一种含三嗪组成部分的二胺化合物,由下述通式1所示:
其中,A是直接键、-O-或-COO-;B是直接键、-O-、-COO-、-CONH-或-OCO-;C是C1-30直链、支链或环状一价有机基团或它们的结合形式。
按照本发明所述特征,还提供了一种通过二胺成分(a)和酸二酐(b)反应制得的聚酰胺酸,基于100mol%所述二胺成分,所述二胺成分含有0.1mol%或更多的通式1所述二胺化合物。
按照本发明所述特征,还提供了一种通过在溶剂中溶解所述聚酰胺酸以制得一种液晶配向剂、涂敷该配向剂到基体上并全部或部分地酰亚胺化该涂层而制得的液晶配向膜。
附图说明
本发明的上述和其它目的、特征和其它优点,从与附图一道的详细说明将会变得更加清楚明了。
图1为本发明制备实施例3中制得的二胺化合物的1H-NMR光谱。
图2为本发明制备实施例3中制得的二胺化合物的差示扫描量热法(DSC)的热分析图。
具体实施方式
现在将对本发明作更详细的描述。
优选的通式1的含三嗪组成部分的二胺化合物是这样的化合物,其中的取代基C是直链或支链脂族烃基、饱和环烃基、含至少一个碳-碳双键的环烃基、稠合饱和或不饱和环烃基或选自下述基团中的基团:
其中,X1和X2每个独立地是-H、-CH3、-CF3、-F、-Br、-Cl、-CN、-OH或-NO2。
所述直链或支链脂族烃基、饱和环烃基、含至少一个碳-碳双键的环烃基、稠合饱和或不饱和环烃基,可被至少一个选自-H、-CH3、-CF3、-F、-Br、-Cl、-CN、-OH和-NO2中的基团取代。
至于可用于本发明的二胺化合物,可以例举化合物:
本发明还提供了一种具有由下述通式2表示的重复单元的聚酰胺酸:
其中,x是四价芳族或脂环族有机基团,z是源自通式1的二胺化合物的二价有机基团或源自芳族或聚硅氧烷基二胺的二价有机基团。
特别地,本发明所述聚酰胺酸是通过使二胺成分(a)和酸二酐(b)进行反应制得的,基于100mol%所述二胺成分,该二胺成分含有0.1mol%或更多的通式1二胺化合物。
本发明人已经发现,使用一种含三嗪组成部分的特定二胺化合物作为制备所述聚酰胺酸的二胺成分,会扩宽最终聚酰亚胺预倾角的可控范围,容易控制该预倾角,并表现出优良的配向性能。
该二胺成分(a)中的通式1二胺化合物的含量,以100mol%该二胺成分(a)为基准,是在0.1-100mol%范围内,优选为1-60mol%,更优选为2-30mol%。
预倾角随通式1二胺化合物的含量而定。根据液晶显示装置的方式,该二胺化合物可以单独使用用来制备聚酰胺酸,之后,对该聚酰胺酸进行酰亚胺化以制备液晶配向膜。
任选地,还可单独添加分别由下述通式3和4表示的芳族二胺化合物和/或聚硅氧烷基二胺化合物:
H2N-Y-NH2 (3)
其中,Y是二价芳族有机基团,
其中,R1、R2、R3和R4每个独立地是C1-10烷基、烷氧基或芳基,R5和R6每个独立地是C1-10亚烷基。
在上述通式3中,Y优选是选自下述基团的二价有机基团:
通式3的芳族环二胺化合物的优选实例包括(但不限于)对苯二胺(p-PDA)、4,4-亚甲基二苯胺(MDA)、4,4-氧二苯胺(ODA)、间二氨基苯氧二苯基砜(m-BAPS)、对二氨基苯氧二苯基砜(p-BAPS)、2,2-二氨基苯氧苯基丙烷(BAPP)、2,2-二氨基苯氧苯基六氟丙烷(HF-BAPP)等。
通式4的聚硅氧烷基二胺化合物的优选实例包括下述化合物:
其中,n是1-10的一个整数。
添加通式3的芳族二胺化合物是有利的,因为该最终液晶配向膜具有提高的机械强度。添加通式4的聚硅氧烷基二胺是有利的,因为该最终液晶配向膜具有改善的胶粘性,从而具有提高的机械强度。
所用的芳族环二胺、聚硅氧烷基二胺或其混合物的含量,基于该二胺成分(a)的总量,在0-99.9mol%范围之内,优选为40-99mol%,更优选为70-98mol%。对于芳族环二胺和聚硅氧烷基二胺的混合物情形,该芳族环二胺与该聚硅氧烷二胺的混合摩尔比在0.5∶99.5和99.5∶0.5之间。
用于制备本发明所述聚酰胺酸的酸二酐成分(b),是一种由下述通式5表示的芳族环酸二酐:
其中,X是四价芳族环状有机基团;一种由下述通式6表示的脂环族酸二酐:
其中,X’是四价脂环族有机基团;或它们的混合物。
优选是一种芳族环酸二酐和脂族酸二酐的混合物,其中该芳族环酸二酐与该脂环族酸二酐的混合摩尔比是在1∶99和99∶1之间。
上述通式5中取代基X优选是选自下述基团的四价芳族环状有机基团:
通式6中取代基X’优选是选自下述基团的四价脂族有机基团:
其中,X1、X2、X3和X4每个独立地是-H、-CH3、-CF3、-F、-Br、-Cl、-CN、-OH或-NO2。
用来制备本发明所述聚酰胺酸的芳族环酸二酐,使得配向膜(涂敷厚度约0.1μm)能够经受摩擦工艺(它是为了在一个方向上驱动液晶而进行的),能够经受高温工艺(200℃或更高),并且能够耐化学品。
芳族环酸二酐的实例包括(但不限于)均苯四酸二酐(PMDA)、联苯四酸二酐(BPDA)、二苯醚四酸二酐(ODPA)、二苯甲酮四酸二酐(BTDA)、六氟异亚丙基二邻苯二甲酸二酐(6-FDA)等。
所述芳族环酸二酐的含量,基于所述酸二酐总量,是在1-99mol%范围之内,优选为10-80mol%,更优选为10-50mol%。当所述芳族环酸二酐含量低于上述规定范围时,最终配向膜的机械性能和耐热性差。另一方面,当所述芳族环酸二酐含量超过该范围时,则最终配向膜的电子性能如电压保持率变差。
添加用于制备本发明所述聚酰胺酸的脂族酸二酐,能够解决很多问题,诸如在普通有机溶剂中的耐溶性、在可见光区域的低透射率(归因于电荷迁移配合物的形成)、差的光电性质(归因于高的极性,源于聚酰胺酸的分子结构)等。所述脂族酸二酐的实例包括(但不限于)5-(2,5-二氧四氢呋喃基)-3-甲基环己烯-1,2-二羧酸二酐(DOCDA)、二环辛烯-2,3,5,6-四羧酸二酐(BODA)、1,2,3,4-环丁烷四羧酸二酐(CBDA)、1,2,3,4-环戊烷四羧酸二酐(CPDA)、1,2,4,5-环己烷四羧酸二酐(CHDA)等。
所述脂族酸二酐的含量,基于所述酸二酐总量,是在1-99mol%范围之内,优选为20-90mol%,更优选为50-90mol%。
本发明所述聚酰胺酸在普通质子惰性极性溶剂如N-甲基-2-吡咯烷酮(NMP)、γ-丁内酯(GBL)、二甲基甲酰胺(DMF)、二甲基乙酰胺(DMAc)和四氢呋喃(THF)中具有良好的溶解性。本发明人已经发现,这种溶解性的提高是归因于该脂族酸二酐的引入、和在该功能二胺中存在着含高度极性三嗪组成部分的主链和膨胀聚合物自由体积的侧链。由于液晶显示装置近来尺寸变得很大,并需要高分辨率和高质量,所以,配向剂的适印性变得越来越重要。在这些环境下,溶剂中的良好溶解性和聚酰胺酸的高极性是非常关键的因素,并且,当聚酰胺酸涂敷到液晶配向膜上时,对于在基片的适印性具有积极影响。
本发明所述聚酰胺酸的数均分子量范围为10,000-500,000g/mol,优选为10,000-300,000g/mol。所述聚酰胺酸的玻璃转化温度为200-350℃,它随酰亚胺化反应速率或该聚酰胺酸结构而定。
所述聚酰亚胺液晶配向膜是通过在给定溶剂中溶解所述聚酰胺酸以得到一种液晶配向剂、涂敷该配向剂到基片上和全部或部分地亚胺化该涂层而制得的。
用来制备所述液晶配向剂的溶剂的实例包括(但不限于)质子惰性极性溶剂如N-甲基-2-吡咯烷酮(NMP)、γ-丁内酯(GBL)、二甲基甲酰胺(DMF)、二甲基乙酰胺(DMAc)和四氢呋喃(THF)等。
在涂敷之后,在一个烘箱中或在加热板上于180-250℃进行酰亚胺化反应,持续5-30分钟。根据预定目的,该酰亚胺化反应比率可在30-99%范围内变动。
经由酰亚胺化该聚酰胺酸制得的液晶配向膜在可见光区域具有90%或更大的高透射率、优良的液晶配向性能,并且,可在1-90°范围内容易地控制液晶预倾角。而且,由于本发明的液晶配向膜含有通式1的二胺化合物,它改善了光电性质,例如低的折射率和低的介电常数。
在下文中,根据下述优选实施例和对比例,本发明的构造和效果将得到更详细的说明。但是,这些实施例是为例证说明目的而给出的,不能理解为是对本发明范围的限制。
制备实施例1:制备2,4-二氯-6-十六烷基-1,3,5-三嗪
将2.7g镁添加到200ml四氢呋喃中,搅拌,直到镁完全溶解。向该溶液中逐滴添加溴代十六烷(31.1g)的四氢呋喃(200ml)溶液。之后,加热所得溶液到65℃,并在搅拌作用下反应6小时。反应溶液缓慢逐滴地添加到氰尿酰氯(15g)的四氢呋喃(250ml)溶液,并反应12小时。在反应结束后,将得到的溶液在减压下蒸发得到一种浓缩物,接着,通过真空蒸馏纯化该浓缩物,得到纯的2,4-二氯-6-十六烷基-1,3,5-三嗪。
制备实施例2:制备2,4-二硝基苯氧基-6-十六烷基-1,3,5-三嗪
将在制备实施例1制得的该化合物(9.7g)的二氯甲烷(100ml)溶液,添加到21.62g 4-硝基苯酚和6.22g氢氧化钠的水溶液中。得到的溶液回流24小时。在反应之后,分离出含水层,二氯甲烷层采用1N含水溶液进行萃取、采用超纯水洗涤数次、在硫酸镁上干燥和在减压下蒸发,制得粗产物。该粗产物通过无水重结晶进行处理,得到一种白色固体2,4-二硝基苯氧基-6-十六烷基-1,3,5-三嗪。
制备实施例3:制备2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪
将在制备实施例2制得的2,4-二硝基苯氧基-6-十六烷基-1,3,5-三嗪14.5g溶解在300ml四氢呋喃中,然后向其中添加1.4g的Pd/C。向该混合物中输入50psi的氢气,然后在60℃反应12小时。反应之后,过滤该反应混合物以除去钯,并在减压下蒸发,得到粗产物。对该粗产物进行重结晶,得到一种纯的白色固体2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪。最终产物在环境条件下是相对稳定的。最终产物的结构采用1H-NMR光谱进行鉴定,并进行差示扫描量热法(DSC)(参见图1和2)。
实施例1
将作为二胺成分的0.95mol 4,4-亚甲基二苯胺和在制备实施例3中制得的0.05mol 2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪,装入到配置有搅拌器、恒温器、氮气注入装置和冷凝器的四颈烧瓶中,同时流过氮气,然后在其中溶解N-甲基-2-吡咯烷酮(NMP)。向所得溶液中添加呈固体形式0.5mol的5-(2,5-二氧四氢呋喃基)-3-甲基环己烷-1,2-二羧酸二酐(DOCDA)和0.5mol均苯四酸二酐(PMDA)作为酸二酐成分。所得混合物进行剧烈搅拌。此时,固体含量为15重量%。该混合物在低于25℃的温度进行反应24小时,制得聚酰胺酸溶液(PAA-1)(分子量:50,000-150,000g/mol)。
将该聚酰胺酸溶液涂敷到ITO玻璃基片上,至厚度为0.1μm,并于210℃固化10分钟,制得液晶配向膜。在液晶配向膜经过摩擦工艺之后,测量所述液晶的配向性能和预倾角。为了评价液晶配向膜的适印性,在该配向膜涂敷到ITO玻璃基片之后,最后观察扩散性和卷曲性能。具体地说,该配向膜表面采用摩擦机进行摩擦,两个基片以每个基片的摩擦方向相反的方式相互平行地放置,密封两个基片,同时保持80μm的元件间隔(cell gap),以制作液晶元件。该液晶元件填充有液态晶体化合物(Merk licristal)。在正交极化光学显微镜下观察该液晶的配向性质。采用晶体旋转法测量液晶的预倾角。结果如下表1所示。
为了检测其电学性质,将聚酰胺酸溶液涂敷到ITO图案化玻璃基片表面,至厚度为0.1μm,两个基片以每个基片摩擦方向垂直(90°)的方式相互正交地放置,密封两个基片,同时保持5μm的元件间隔,以制作测试元件。测量其电压保持率,结果如下表1所示。
实施例2
按与实施例1相同方式制备聚酰胺酸(PAA-2),不同之处在于采用0.9mol 4,4-亚甲基二苯胺和0.1mol 2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪。测量其配向性能、预倾角和电压保持率。结果如下表1所示。
实施例3
按与实施例1相同方式制备聚酰胺酸(PAA-3),不同之处在于采用0.5mol环丁烷二酸酐替代0.5mol 5-(2,5-二氧四氢呋喃基)-3-甲基环己烷-1,2-羧酸二酐(DOCDA)。测量其配向性能、预倾角和电压保持率。结果如下表1所示。
实施例4
按与实施例2相同方式制备聚酰胺酸(PAA-4),不同之处在于采用0.5mol环丁烷二酸酐替代0.5mol 5-(2,5-二氧四氢呋喃基)-3-甲基环己烷-1,2-羧酸二酐(DOCDA)。测量其配向性能、预倾角和电压保持率。结果如下表1所示。
实施例5
按与实施例1相同方式制备聚酰胺酸(PAA-5),不同之处在于不使用4,4-亚甲基二苯胺,而是采用1.0mol 2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪。测量其配向性能、预倾角和电压保持率。结果如下表1所示。
对比例1
按与实施例2相同方式制备聚酰胺酸(PAA-6),不同之处在于采用2,4-二氨基-1-十六烷基羟苯替代2,4-二氨基苯氧基-6-十六烷基-1,3,5-三嗪。测量其配向性能、预倾角和电压保持率。结果如下表1所示。
表1
| 样品 | 预倾角 | 电压保持率(%) | 适印性 | 配向性能 | 扩散性 | |
| 室温 | 60℃ | |||||
| PAA-1 | 5.3 | 99.5 | 98.2 | 良好 | 良好 | 良好 |
| PAA-2 | 8.1 | 99.3 | 97.6 | 良好 | 良好 | 良好 |
| PAA-3 | 4.8 | 99.1 | 97.3 | 良好 | 良好 | 良好 |
| PAA-4 | 7.7 | 99.1 | 95.9 | 良好 | 良好 | 良好 |
| PAA-5 | 89.8 | 99.0 | 94.5 | 差 | 良好 | 良好 |
| PAA-6 | 6.9 | 98.8 | 93.7 | 良好 | 良好 | 差 |
从表可以看出,本发明所述液晶配向膜具有优良的光电性能,例如高的电压保持率,而且液晶的预倾角可以容易地进行控制。
尽管本发明的优选实施方式已经为例证说明目的进行了描述,但是,本发明技术人员将能够理解,在不远离随后权利要求书所述本发明范围和精神时,各种不同的改进、添加和取代是可能的。
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| KR1020030022261 | 2003-04-09 | ||
| KR1020030022261A KR100543093B1 (ko) | 2003-04-09 | 2003-04-09 | 트리아진기를 포함한 디아민 화합물, 그로부터 제조된폴리아믹산 및 액정 배향막 |
| KR10-2003-0022261 | 2003-04-09 |
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| CNB2004800007043A Expired - Fee Related CN1321146C (zh) | 2003-04-09 | 2004-01-20 | 含三嗪基团的二胺化合物、从该二胺化合物合成制得的聚酰胺酸和从该聚酰胺酸制得的液晶配向膜 |
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| CN103226262A (zh) * | 2012-01-31 | 2013-07-31 | 群康科技(深圳)有限公司 | 影像显示系统及液晶显示装置的制造方法 |
| CN103323977A (zh) * | 2012-03-22 | 2013-09-25 | 群康科技(深圳)有限公司 | 具有液晶显示模块的影像显示装置及其制造方法 |
| CN104119533A (zh) * | 2010-02-10 | 2014-10-29 | 宇部兴产株式会社 | 聚酰亚胺膜、含它的聚酰亚胺层压体和含它的聚酰亚胺金属层压体 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100543093B1 (ko) | 2003-04-09 | 2006-01-20 | 제일모직주식회사 | 트리아진기를 포함한 디아민 화합물, 그로부터 제조된폴리아믹산 및 액정 배향막 |
| KR100662183B1 (ko) * | 2004-12-28 | 2006-12-27 | 제일모직주식회사 | 기능성 디아민을 포함하는 액정 배향막용 조성물 |
| KR100655043B1 (ko) | 2004-12-29 | 2006-12-06 | 제일모직주식회사 | 트리아진기 와 측쇄에 숙신이미드기를 가지는 디아민화합물 및 이를 이용하여 제조된 액정 배향물질 |
| KR100622215B1 (ko) * | 2004-12-31 | 2006-09-14 | 제일모직주식회사 | 덴드론 구조의 측쇄를 갖는 디아민을 이용한 액정 배향막용 조성물 |
| KR100847464B1 (ko) * | 2007-03-02 | 2008-07-21 | 제일모직주식회사 | 액정배향제 및 이를 이용하여 제조된 액정배향막 |
| KR100882586B1 (ko) * | 2007-10-10 | 2009-02-13 | 제일모직주식회사 | 액정 광배향제, 이를 포함하는 액정 광배향막, 및 이를포함하는 액정 표시 장치 |
| KR100913605B1 (ko) * | 2007-12-07 | 2009-08-26 | 제일모직주식회사 | 액정 광배향제, 이를 포함하는 액정 광배향막, 및 이를포함하는 액정 표시 장치 |
| TWI490263B (zh) * | 2012-03-22 | 2015-07-01 | 群康科技(深圳)有限公司 | 具有液晶顯示模組之影像顯示裝置及液晶顯示模組之製造方法 |
| TWI614310B (zh) * | 2015-06-18 | 2018-02-11 | 奇美實業股份有限公司 | 液晶配向劑及其應用 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119533A (zh) * | 2010-02-10 | 2014-10-29 | 宇部兴产株式会社 | 聚酰亚胺膜、含它的聚酰亚胺层压体和含它的聚酰亚胺金属层压体 |
| CN103226262A (zh) * | 2012-01-31 | 2013-07-31 | 群康科技(深圳)有限公司 | 影像显示系统及液晶显示装置的制造方法 |
| CN103226262B (zh) * | 2012-01-31 | 2015-10-14 | 群康科技(深圳)有限公司 | 影像显示系统及液晶显示装置的制造方法 |
| CN103323977A (zh) * | 2012-03-22 | 2013-09-25 | 群康科技(深圳)有限公司 | 具有液晶显示模块的影像显示装置及其制造方法 |
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| Publication number | Publication date |
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| US20060149028A1 (en) | 2006-07-06 |
| JP2006511696A (ja) | 2006-04-06 |
| US7635746B2 (en) | 2009-12-22 |
| CN1701086A (zh) | 2005-11-23 |
| JP4094027B2 (ja) | 2008-06-04 |
| KR100543093B1 (ko) | 2006-01-20 |
| CN1321146C (zh) | 2007-06-13 |
| KR20040088158A (ko) | 2004-10-16 |
| WO2004090017A1 (en) | 2004-10-21 |
| CN101007787B (zh) | 2010-09-01 |
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