WO1990000587A1 - Neue ferroelektrische flüssigkristalline polymere, ein verfahren zu ihrer herstellung und ihre verwendung in elektrooptischen bauteilen - Google Patents
Neue ferroelektrische flüssigkristalline polymere, ein verfahren zu ihrer herstellung und ihre verwendung in elektrooptischen bauteilen Download PDFInfo
- Publication number
- WO1990000587A1 WO1990000587A1 PCT/EP1989/000749 EP8900749W WO9000587A1 WO 1990000587 A1 WO1990000587 A1 WO 1990000587A1 EP 8900749 W EP8900749 W EP 8900749W WO 9000587 A1 WO9000587 A1 WO 9000587A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- replaced
- mmol
- formula
- diyl
- ferroelectric
- Prior art date
Links
- 0 C(CC1CC*CC1)C1CC1 Chemical compound C(CC1CC*CC1)C1CC1 0.000 description 8
- CHEROIBAEJDMJS-ROLXFIACSA-N C[C@@H](C(O)OC=C)N Chemical compound C[C@@H](C(O)OC=C)N CHEROIBAEJDMJS-ROLXFIACSA-N 0.000 description 1
Classifications
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and 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 a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
- C08F20/36—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
-
- 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
- C09K19/3833—Polymers with mesogenic groups in the side chain
- C09K19/3842—Polyvinyl derivatives
- C09K19/3852—Poly(meth)acrylate derivatives
- C09K19/3857—Poly(meth)acrylate derivatives containing at least one asymmetric carbon atom
Definitions
- New ferroelectric liquid crystalline polymers a process for their production and their use in electro-optical components
- Light transmittance or reflectivity of the device depends on the applied electrical voltage.
- a liquid crystal display consists of two carrier plates, preferably glass plates, which are coated with transparent electrodes and usually with one or two orientation layers, between which the
- Liquid crystal layer is located.
- Other components include polarizers, color filters, passivation,
- Chloesteric liquid crystal phases have been used to an increasing extent for some years now
- ferroelectric especially smectic C *
- low molecular weight liquid crystalline compounds i.e. with molar masses below 2000 g / mol, preferably below 800 g / mol, but in particular not around polymers,
- Copolymers Polycondensates or copolycondensates. Because of their lower viscosity they have low molecular weight
- the new compound are polymers that are made from
- R 1 straight-chain or branched (with or without
- asymmetric carbon atom) alkyl or alkenyl with 1 to 16 carbon atoms where also one or two non-adjacent -CH 2 groups by -0-, -S-, -CO-, -CO-O-, -O-CO - or -O-CO-O- can be replaced and where H can also be replaced by F,
- R 2 , R 3 , R 4 , R 5 H or straight-chain or branched alkyl with 1 to 16 or alkenyl with 2 to 16
- a 1 , A 2 , A 3 identical or different 1,4-phenylene, in which 1 or 2 H can be replaced by F, Cl and / or CN, trans-1,4-cyclohexylene, in which 1 or 2 H can be replaced by F, Cl, CN and / or CH3, pyrazine-2,5-diyl, pyridazine-3,6-diyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, (1,3 , 4) -Thiadiazole-2,5-diyl, 1,3-dioxane-2,5-diyl, 1,3-dithiane-2,5-diyl.
- M 2 , M 3 identical or different CO-O, O-CO, CO-S, S-CO, CH 2 -O, O-CH 2 ,
- G straight-chain or branched alkylene m 1 to
- Ferroelectric liquid-crystalline polymers consisting of repeating units of the formula (I) in which the grouping is preferred
- liquid-crystalline polymers consisting of repeating units of the formula (I) in which
- asymmetric carbon atom) alkyl or alkenyl with 2 to 16 carbon atoms where also one or two non-adjacent -CH 2 groups by -O-, -S-, -CO-, -CO-O-, -O-CO - or -O-CO-O- can be replaced and where H can also be replaced by F, or the rest
- ferroelectric, liquid-crystalline polymers which are composed of at least two different monomer units of the formula (I) are also particularly preferred.
- the monomers of the above formula can be synthesized by known methods.
- the polymers according to the invention are ferroelectric liquid crystals, the switching times of a few
- the solvent is drawn off to 10 ml, and the product which has precipitated at 0 ° C. is filtered off with suction.
- the mixture is then hydrolyzed with 50 ml of saturated NH 4 -Cl solution, the phases are separated and the aqueous phase is extracted twice with ether. The combined organic phases are washed with saturated NaCl solution,
- the polymer is precipitated by adding 8 ml of methanol and purified by chromatography.
- the liquid crystalline polymer has a medium one
- the polymer (P 3 ) has an average molecular weight of 76,000 g / mol and shows the following phase sequence:
- DMAP 4-Dimethylaminopyridine
- DCC dicyclohexylcarbdiimide
- the precipitated substance is filtered off, the CH 2 Cl 2 phase is washed with water, dried over MgSO 4 and the
- Lithium aluminum hydride was distilled, and mixed with
- AIBN azodiisobutyronitrile
- the polymers are made by
- the crude product is purified by column chromatography (mobile phase CH 2 Cl 2 ). A colorless oil is isolated.
- Ethanol is distilled off, the residue with ether added, washed with H 2 O, dried over MgSO 4 and the solvent removed.
- reaction mixture is concentrated, treated with ether, washed three times with H 2 O, dried over MgSO 4 and
- the reaction mixture is kept at 60 ° C. for 48 h.
- the cooled solution is poured into 50 ml of methanol, the precipitated polymer is filtered off with suction and washed with methanol.
- the liquid-crystalline polymer has an average molecular weight Mw> 10 6 .
- This acid was generated with a compound of the formula esterified in CH 2 Cl 2 and in the presence of dicyclohexylcarbodiimide.
- This compound was polymerized by
- the liquid crystalline polymer has a medium one
- the polymer has a smectic phase in the temperature range of 10 - 40 ° C.
- the monomer (M 7 ) is synthesized analogously to (M 1 ).
- the polymerization is also carried out analogously to Example 1.
- the polymer (P 7 ) has an average molecular weight
- Mw 400,000.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Liquid Crystal Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89908703A EP0424461B1 (de) | 1988-07-08 | 1989-06-29 | Neue ferroelektrische flüssigkristalline Polymere, ein Verfahren zu ihrer Herstellung und ihre Verwendung in elektrooptischen Bauteilen |
DE58907471T DE58907471D1 (de) | 1988-07-08 | 1989-06-29 | Neue ferroelektrische flüssigkristalline Polymere, ein Verfahren zu ihrer Herstellung und ihre Verwendung in elektrooptischen Bauteilen. |
DE89EP8900749T DE3990792D2 (en) | 1988-07-08 | 1989-06-29 | Neue ferroelektrische fluessigkristalline polymere, ein verfahren zu ihrer herstellung und ihre verwendung in elektrooptischen bauteilen |
AT89908703T ATE104327T1 (de) | 1988-07-08 | 1989-06-29 | Neue ferroelektrische fluessigkristalline polymere, ein verfahren zu ihrer herstellung und ihre verwendung in elektrooptischen bauteilen. |
KR1019900700483A KR900701963A (ko) | 1988-07-08 | 1990-03-07 | 신규한 강유전성 액정 중합체, 이의 제조방법 및 전자광학 성분에서의 용도 |
NO91910063A NO910063L (no) | 1988-07-08 | 1991-01-07 | Nye ferroelektriske flytendekrystall-polymerer, fremgangsmaate for fremstilling og anvendelse i elektrooptiske komponenter. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3823153.0 | 1988-07-08 | ||
DE3823153A DE3823153A1 (de) | 1988-07-08 | 1988-07-08 | Neue ferroelektrische fluessigkristalline polymere |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990000587A1 true WO1990000587A1 (de) | 1990-01-25 |
Family
ID=6358245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1989/000749 WO1990000587A1 (de) | 1988-07-08 | 1989-06-29 | Neue ferroelektrische flüssigkristalline polymere, ein verfahren zu ihrer herstellung und ihre verwendung in elektrooptischen bauteilen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5227090A (de) |
EP (1) | EP0424461B1 (de) |
JP (1) | JP2786920B2 (de) |
KR (1) | KR900701963A (de) |
DE (3) | DE3823153A1 (de) |
WO (1) | WO1990000587A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0477665A1 (de) * | 1990-09-24 | 1992-04-01 | Siemens Aktiengesellschaft | Vernetzte Epoxidharze mit nichtlinear-optischen Eigenschaften |
US5187248A (en) * | 1989-05-26 | 1993-02-16 | Basf Aktiengesellschaft | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on |
US5187298A (en) * | 1990-05-18 | 1993-02-16 | Basf Aktiengesellschaft | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2794469B2 (ja) * | 1989-10-19 | 1998-09-03 | 三菱化学株式会社 | 有機高分子液晶 |
EP0492216B1 (de) * | 1990-12-21 | 1995-10-11 | F. Hoffmann-La Roche Ag | Optisch nichtlineare Polymerschichten |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0228703A2 (de) * | 1985-12-26 | 1987-07-15 | Idemitsu Kosan Company Limited | Ferroelektrisches Flüssigkristallpolymer |
EP0258898A2 (de) * | 1986-09-04 | 1988-03-09 | Idemitsu Kosan Company Limited | Flüssigkristallpolymere |
EP0296571A2 (de) * | 1987-06-22 | 1988-12-28 | Idemitsu Kosan Company Limited | Herstellungsverfahren für ein optisches Flüssigkristallelement |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0528449B1 (de) * | 1986-12-17 | 1997-06-11 | Canon Kabushiki Kaisha | Einrichtung, Verfahren und Gerät zur optischen Modulation |
-
1988
- 1988-07-08 DE DE3823153A patent/DE3823153A1/de not_active Withdrawn
-
1989
- 1989-06-29 EP EP89908703A patent/EP0424461B1/de not_active Expired - Lifetime
- 1989-06-29 DE DE58907471T patent/DE58907471D1/de not_active Expired - Fee Related
- 1989-06-29 DE DE89EP8900749T patent/DE3990792D2/de not_active Expired - Lifetime
- 1989-06-29 JP JP1508164A patent/JP2786920B2/ja not_active Expired - Lifetime
- 1989-06-29 WO PCT/EP1989/000749 patent/WO1990000587A1/de active IP Right Grant
-
1990
- 1990-03-07 KR KR1019900700483A patent/KR900701963A/ko not_active Application Discontinuation
- 1990-12-27 US US07/635,134 patent/US5227090A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0228703A2 (de) * | 1985-12-26 | 1987-07-15 | Idemitsu Kosan Company Limited | Ferroelektrisches Flüssigkristallpolymer |
EP0258898A2 (de) * | 1986-09-04 | 1988-03-09 | Idemitsu Kosan Company Limited | Flüssigkristallpolymere |
EP0296571A2 (de) * | 1987-06-22 | 1988-12-28 | Idemitsu Kosan Company Limited | Herstellungsverfahren für ein optisches Flüssigkristallelement |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5187248A (en) * | 1989-05-26 | 1993-02-16 | Basf Aktiengesellschaft | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on |
US5187298A (en) * | 1990-05-18 | 1993-02-16 | Basf Aktiengesellschaft | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on |
EP0477665A1 (de) * | 1990-09-24 | 1992-04-01 | Siemens Aktiengesellschaft | Vernetzte Epoxidharze mit nichtlinear-optischen Eigenschaften |
Also Published As
Publication number | Publication date |
---|---|
EP0424461A1 (de) | 1991-05-02 |
DE3990792D2 (en) | 1991-06-06 |
EP0424461B1 (de) | 1994-04-13 |
JP2786920B2 (ja) | 1998-08-13 |
JPH04500531A (ja) | 1992-01-30 |
DE58907471D1 (de) | 1994-05-19 |
US5227090A (en) | 1993-07-13 |
KR900701963A (ko) | 1990-12-05 |
DE3823153A1 (de) | 1990-01-11 |
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