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Polymerizable liquid crystal composition and alignment film

A technology of polymeric liquid crystals and compositions, applied in nonlinear optics, instruments, polarizing elements, etc., can solve problems such as unreported data, and achieve the effects of stable anisotropy and transparency, and excellent optical anisotropy

Active Publication Date: 2016-03-16
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although it is reported that the inclination angle of the O-plate film can be controlled, data other than the inclination angle (Δnd, haze value, etc.) are not reported (Patent Document 3)

Method used

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  • Polymerizable liquid crystal composition and alignment film
  • Polymerizable liquid crystal composition and alignment film
  • Polymerizable liquid crystal composition and alignment film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0145] The method for preparing the polymerizable liquid crystal composition of the present invention is not particularly limited, and the components constituting the polymerizable liquid crystal composition may be mixed at once or sequentially. The addition order of each component at the time of sequential mixing is arbitrary.

[0146] In addition, when using several types of compounds for one component, you may mix the mixture which premixed these several types of compounds with other components, and you may mix these several types of compounds with other components, respectively.

[0147] In order to avoid inducing undesired thermal polymerization in the photopolymerization of the liquid crystal state when producing an optically anisotropic body, and to easily fix the uniform orientation state of the molecules, the polymerizable liquid crystal composition of the present invention is preferably at room temperature (20~ 40°C, the same below) shows tautotropic liquid crystal p...

Embodiment

[0157] Hereinafter, although a synthesis example, an Example, and a comparative example are given and this invention is demonstrated more concretely, this invention is not limited to an Example. In addition, the measurement method and measurement conditions of each physical property in an Example are as follows.

[0158] [1] NMR

[0159] The compounds were dissolved in deuterated chloroform (CDCl 3 ) or deuterated dimethyl sulfoxide (DMSO-d 6 ), measured using a nuclear magnetic resonance apparatus (300MHz, manufactured by Joll Corporation) 1 H-NMR.

[0160] [2] Observation of liquid crystal phase

[0161] Identification of the liquid crystal phase was carried out by heating the sample on a hot stage (MATS-2002S, manufactured by Tokai Hetto Co., Ltd.), and observing it with a polarizing microscope (manufactured by Nikon Corporation). The phase transition temperature was measured using a differential scanning thermal analyzer (DSC3100SR) manufactured by Bruker AXS Corporat...

Synthetic example 1

[0168] [Synthesis Example 1] Synthesis of Polymerizable Liquid Crystal Compound (A1)

[0169] [1] Synthesis of intermediate compound (I1)

[0170] [chem 29]

[0171]

[0172] Add 9.8g (50.0mmol) of 4-cyano-4'-hydroxybiphenyl, 7.0g (50.0mmol) of 3-bromo-1-propanol, and 13.8g ( 100mmol) and 150mL of acetone to prepare a mixture, and reacted at 64°C for 48 hours while stirring. After the reaction, the solvent was distilled off under reduced pressure to obtain a yellow wet solid. Then, this solid was mixed with 140 mL of water, and 100 mL of diethyl ether was added thereto for extraction. Extraction was performed 3 times. Anhydrous magnesium sulfate was added to the organic layer after liquid separation, followed by drying, and after filtration, the solvent was distilled off under reduced pressure to obtain a yellow solid. This solid was purified by recrystallization using a mixed solvent of hexane / ethyl acetate=2 / 1 (v / v), and 8.7 g of a white solid was obtained. The NMR ...

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Abstract

The present invention provides a polymerizable liquid crystal composition characterized by comprising: (A) at least one polymerizable liquid crystal compound represented by formula [1]; (B) polymerizable liquid crystal compounds represented by formula [2]; At least one type of liquid crystal compound, and (C) a structure selected from at least one type selected from trimethylolpropane structure, pentaerythritol structure, and ethylene glycol structure, or a structure formed by condensation of at least one type selected from them At least one kind of acrylate polyol ester compound. [In the formula, R1, R3 and R4 are each independently an organic group represented by the formula [3] or [4] (wherein X is hydrogen or methyl, and the dotted line is a bond). R2 is hydrogen, halogen, cyano or methoxy. n1, n2, and n3 are integers of 2-10 each independently. q is 0 or 1. p is 1 when q is 0, and is 0 or 1 when q is 1. r is 1 or 2. s is 1 when r is 1 and 0 when r is 2].

Description

technical field [0001] The present invention relates to a polymerizable liquid crystal composition, a polymer obtained by using the same, and an alignment film. More specifically, it relates to a polymerizable liquid crystal composition that can be preferably used as a material having optical properties such as a display device or a recording material, particularly as a polarizing plate for a liquid crystal display and as an optical compensation film such as a retardation plate, and a polymerizable liquid crystal composition using the polymerizable liquid crystal composition. The polymer obtained from the product, and the hybrid alignment film obtained using the polymerizable liquid crystal composition. Background technique [0002] With the demand for display quality and weight reduction of liquid crystal display devices, there is an increasing demand for polymer films whose internal molecular orientation structure is controlled as optical compensation films such as polariz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/30C08F236/20G02B5/30G02F1/1335G02F1/13363
CPCC08F224/00G02B5/3016C08F222/106C08F222/102C08F220/301C08F222/103C08F222/104
Inventor 丹尼尔·樱叶汀畑中真
Owner NISSAN CHEM IND LTD
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