JP4464100B2 - 光学活性な液晶性高分子化合物の製造方法 - Google Patents
光学活性な液晶性高分子化合物の製造方法 Download PDFInfo
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- JP4464100B2 JP4464100B2 JP2003344299A JP2003344299A JP4464100B2 JP 4464100 B2 JP4464100 B2 JP 4464100B2 JP 2003344299 A JP2003344299 A JP 2003344299A JP 2003344299 A JP2003344299 A JP 2003344299A JP 4464100 B2 JP4464100 B2 JP 4464100B2
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- 150000001875 compounds Chemical class 0.000 title claims description 82
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- 238000004519 manufacturing process Methods 0.000 title claims description 19
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 20
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- 125000003118 aryl group Chemical group 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000012788 optical film Substances 0.000 claims description 2
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- 239000000243 solution Substances 0.000 description 9
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- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 4
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- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
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- KLDXJTOLSGUMSJ-JGWLITMVSA-N Isosorbide Chemical compound O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 KLDXJTOLSGUMSJ-JGWLITMVSA-N 0.000 description 2
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
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- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
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- BIWVHGWGBMHTTP-BYPYZUCNSA-N (2s)-2-methylbutane-1,1-diol Chemical compound CC[C@H](C)C(O)O BIWVHGWGBMHTTP-BYPYZUCNSA-N 0.000 description 1
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- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- BIWVHGWGBMHTTP-UHFFFAOYSA-N 2-methylbutane-1,1-diol Chemical compound CCC(C)C(O)O BIWVHGWGBMHTTP-UHFFFAOYSA-N 0.000 description 1
- CCTFMNIEFHGTDU-UHFFFAOYSA-N 3-methoxypropyl acetate Chemical compound COCCCOC(C)=O CCTFMNIEFHGTDU-UHFFFAOYSA-N 0.000 description 1
- FWVMCLACFKOTBI-UHFFFAOYSA-N 3-methylhexane-1,1-diol Chemical compound CCCC(C)CC(O)O FWVMCLACFKOTBI-UHFFFAOYSA-N 0.000 description 1
- GDBUZIKSJGRBJP-UHFFFAOYSA-N 4-acetoxy benzoic acid Chemical compound CC(=O)OC1=CC=C(C(O)=O)C=C1 GDBUZIKSJGRBJP-UHFFFAOYSA-N 0.000 description 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
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- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
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- 125000000524 functional group Chemical group 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- OHMBHFSEKCCCBW-UHFFFAOYSA-N hexane-2,5-diol Chemical compound CC(O)CCC(C)O OHMBHFSEKCCCBW-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229940041616 menthol Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- BCKOQWWRTRBSGR-UHFFFAOYSA-N octane-3,6-diol Chemical compound CCC(O)CCC(O)CC BCKOQWWRTRBSGR-UHFFFAOYSA-N 0.000 description 1
- GTCCGKPBSJZVRZ-UHFFFAOYSA-N pentane-2,4-diol Chemical compound CC(O)CC(C)O GTCCGKPBSJZVRZ-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- YQUVCSBJEUQKSH-UHFFFAOYSA-N protochatechuic acid Natural products OC(=O)C1=CC=C(O)C(O)=C1 YQUVCSBJEUQKSH-UHFFFAOYSA-N 0.000 description 1
- 230000006340 racemization Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 150000003892 tartrate salts Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- DTQVDTLACAAQTR-DYCDLGHISA-N trifluoroacetic acid-d1 Chemical compound [2H]OC(=O)C(F)(F)F DTQVDTLACAAQTR-DYCDLGHISA-N 0.000 description 1
- WKOLLVMJNQIZCI-UHFFFAOYSA-N vanillic acid Chemical compound COC1=CC(C(O)=O)=CC=C1O WKOLLVMJNQIZCI-UHFFFAOYSA-N 0.000 description 1
- TUUBOHWZSQXCSW-UHFFFAOYSA-N vanillic acid Natural products COC1=CC(O)=CC(C(O)=O)=C1 TUUBOHWZSQXCSW-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
- C09K19/3804—Polymers with mesogenic groups in the main chain
- C09K19/3809—Polyesters; Polyester derivatives, e.g. polyamides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyesters Or Polycarbonates (AREA)
- Polarising Elements (AREA)
Description
一般に、液晶性高分子化合物は、芳香族カルボン酸、芳香族ジオール、芳香族オキシカルボン酸単位からなるものが多く、フェノール性のヒドロキシル基を有する化合物は無水酢酸などでアセチル化した後、引き続き同一反応器内で溶融重縮合に供される。
一方、溶液法を利用して液晶性高分子化合物を製造する場合、反応器あたりの製造可能なポリマー量が少ない、反応物の活性化のための工程に手間がかかる、後処理の必要があるなど工業的に不利である。また、オキシカルボン酸単位は自身でブロック化してしまうため、当該反応に用いることが困難であり、溶液法で得ることのできるポリマーの種類には制限がある。
前記光学活性な低分子化合物は、脂肪族炭素に結合したヒドロキシル基を有する化合物であることが好ましく、また前記液晶性高分子化合物は、オルソ置換芳香族単位を有するポリエステルであることが好ましい。
さらに本発明は、前記記載の製造方法で得られる光学活性な液晶性高分子化合物からなることを特徴とする光学フィルムに関する。
本発明は、主鎖にエステル結合を有する液晶性高分子化合物(主鎖型液晶性高分子化合物)と光学活性な低分子化合物を反応させることを特徴とする。
さらには、構造単位に少なくともオルソ置換芳香族単位を含むものがより好ましい。オルソ置換芳香族単位を導入することにより、液晶性高分子化合物のガラス転移温度を上昇させることができ、さらには結晶性を抑制することができる。これは、後述する光学活性なヒドロキシル基を有する低分子化合物との反応の際、好適な反応温度条件下において結晶相の発現を抑えることが可能となる等、本発明の製造方法に供する液晶性高分子化合物として好適といえる。かかる、オルソ置換芳香族単位としては以下のようなものが例として挙げられる。
溶融重縮合法としては、カルボン酸とフェノール性のヒドロキシル基のアセチル化物との脱酢酸反応により行うことができる。ここでフェノール性ヒドロキシル基はあらかじめアセチル化しておいても良い。またフリーなヒドロキシル基を出発原料にして、反応器内で無水酢酸によりアセチル化を行う方法を採用してもよい。
また、基板上に均一な塗膜を形成するために、界面活性剤、消泡剤、レベリング剤等を溶液に添加しても良い。さらに、着色を目的として液晶性の発現を妨げない範囲内で二色性染料や通常の染料や顔料等を添加することもできる。
さらに基板としては、表面に規則的な微細溝を多数設けたアルミニウム、鉄、銅などの金属板や各種ガラス板等も使用することができる。
テレフタル酸16.6g(0.1mol)、ヒドロキノン11.1g(0.1mol)、バニリン酸16.8g(0.1mol)、無水酢酸33.7g(0.33mol)を300mlのフラスコに仕込み、攪拌しながら150℃に昇温した後、次いで280℃で10時間反応させた。一部をサンプリングして、ネマチック液晶性のポリマーが得られていることを確認した。次に、フラスコの温度を200℃に一旦下げてから、(S)−2−メチルブタンジオールを2.0g加え、ポリマーとよくかき混ぜた後、250℃に昇温してさらに3時間反応させて、式(1)のポリマーを得た。
式(1)のポリマーを、2枚のガラス板の間にはさみ、220℃に加熱すると、赤外領域に選択反射が見られた。このようにしてコレステリック液晶性のポリマーを合成することができた。
式(2)の液晶性ポリエステルに対し、イソソルビドを4重量%加え、250℃で5時間反応させて、式(3)の光学活性な液晶性ポリエステルを得た。式(3)のポリマーのN−メチルピロリドン溶液を、ラビングしたポリイミド層を有するガラス基板に塗布し、230℃で熱処理して、式(3)のポリマーのフィルムを作製した。このフィルムは透明で、フィルム断面を透過型電子顕微鏡で観察したところ、均一なコレステリック配向構造を有し、らせんのピッチは0.2μmであった。このラビングポリイミドガラス上のフィルムを、市販のMVA方式の液晶ディスプレーに組み込んだところ、視野角が改善できることが分かった。
式(4)の液晶性ポリエステルに対し、(R)−3−メチルヘキサンジオールを7重量%加え、260℃で2時間反応させ、次いで280℃で5時間反応させて、式(5)の光学活性な液晶性ポリエステルを得た。式(5)のポリマーはコレステリック液晶性を示した。
ポリエチレンテレフタレートと4−アセトキシ安息香酸を270℃で5時間反応させて式(6)の液晶性ポリエステルを得た後、コレステロールを10重量%加え、250℃で7時間反応を行い、式(7)の光学活性なポリマーを得た。式(7)のポリマーを1,1,2,2−テトラクロエタン/p−クロロフェノール混合溶媒(40/60重量比)に溶かして溶液を調製し、ラビングしたポリイミド層を有するガラス基板に塗布し、230℃で熱処理して、式(7)のポリマーのフィルムを作製した。このフィルムは透明で、約1200nmの赤外域に選択反射をもっていた。このラビングポリイミドガラス上のフィルムを、市販のTNモードのTFT液晶ディスプレーに組み込んだところ、正面からのコントラストは若干低下するものの視野角は著しく改善できることが分かった。
Claims (4)
- 主鎖にエステル結合を有する液晶性高分子化合物と、ヒドロキシル基を有する光学活性な低分子化合物とを反応させることにより、当該液晶性高分子化合物に当該低分子化合物を光学活性な基を有する単位として組み込むことを特徴とする光学活性な液晶性高分子化合物の製造方法。
- 光学活性な低分子化合物が、脂肪族炭素に結合したヒドロキシル基を有する化合物であることを特徴とする請求項1記載の光学活性な液晶性高分子化合物の製造方法。
- 液晶性高分子化合物が、オルソ置換芳香族単位を有するポリエステルであることを特徴とする請求項1記載の光学活性な液晶性高分子化合物の製造方法。
- 請求項1乃至3のいずれかの項に記載の製造方法で得られる光学活性な液晶性高分子化合物からなることを特徴とする光学フィルム。
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JP2003344299A JP4464100B2 (ja) | 2003-10-02 | 2003-10-02 | 光学活性な液晶性高分子化合物の製造方法 |
CNB2004800280613A CN100396712C (zh) | 2003-10-02 | 2004-09-30 | 制备光学活性液晶聚合物的方法 |
PCT/JP2004/014805 WO2005033178A1 (ja) | 2003-10-02 | 2004-09-30 | 光学活性な液晶性高分子化合物の製造方法 |
KR1020067006356A KR101143105B1 (ko) | 2003-10-02 | 2004-09-30 | 광학 활성인 액정성 고분자 화합물의 제조방법 |
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US5491001A (en) * | 1991-09-03 | 1996-02-13 | Nippon Oil Company, Limited | Method for producing viewing angle compensator for liquid crystal display |
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US20060157672A1 (en) | 2006-07-20 |
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