Polymerizable compound containing benzothiophene

A technology for polymerizing compounds and compounds, applied in the fields of organic chemistry, chemical instruments and methods, instruments, etc., can solve the problems of poor uniformity and low TFT display, and achieve the effects of less monomer residue, high charge retention rate, and high polymerization activity.

Active Publication Date: 2016-07-13
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is mainly due to the fact that the polymerizable unit is too short for the UV sensitive wavelength, or there is no or insufficient tilt angle after illumination, or the uniformity of the polymerizable component is poor after illumination, or because the VHR after UV is not suitable for TFT display applications lower impact

Method used

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  • Polymerizable compound containing benzothiophene
  • Polymerizable compound containing benzothiophene
  • Polymerizable compound containing benzothiophene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] step one

[0085] Add 0.056mol (1-a) 15.12g and dichloromethane 200g into a 500ml three-necked flask, cool the reaction solution to 0-5°C, drop 0.067mol16.87g of boron tribromide, and react overnight.

[0086] The reaction solution was poured into a beaker filled with 500g of water, and separated. The aqueous phase was extracted three times with 300 g of dichloromethane. The organic phase was washed twice with 300 g of water. The organic phase was evaporated to dryness to obtain 12.1 g of product 1-b, yield: 89.3%

[0087] Jump straight into the next step.

[0088] Gc-MS: see attached picture 1

[0089] step two

[0090]

[0091] Add 0.05mol1-b12.1g, 250g of dichloromethane, 0.6g of DMAP, 27g of DCC, 11g of methacrylic acid into a 500ml three-necked flask, and react overnight at 25°C.

[0092]The reaction solution was poured into a beaker filled with 500g of water, and separated. The aqueous phase was extracted three times with 250 g of dichloromethane. The...

Embodiment 2

[0095]

[0096] Add 0.05mol1-b12.1g, 250g of dichloromethane, 0.6g of DMAP, 27g of DCC, 15g of trifluoromethacrylic acid into a 500ml three-necked flask, and react overnight at 25°C.

[0097] The reaction solution was poured into a beaker filled with 500g of water, and separated. The aqueous phase was extracted three times with 250 g of dichloromethane. The organic phase was washed twice with 250 g of water.

[0098] The solvent was evaporated to dryness under reduced pressure, dissolved in toluene, passed through a silica gel chromatography column, and the solvent was evaporated to dryness. Toluene was recrystallized 3 times. 12.5 g of I-2 was obtained, yield 51%, Gc: 99.81%.

[0099] The compounds of Examples I-1 and I-2 have the advantage of longer ultraviolet absorption wavelengths, which can reduce damage to liquid crystal molecules during the process of forming an alignment layer by ultraviolet irradiation polymerization.

Embodiment 3

[0101]

[0102]

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PUM

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Abstract

The invention discloses a polymerizable compound represented in a formula I, liquid crystal composition containing the polymerizable compound represented in the formula I as well as a liquid crystal display device. In the formula I, X1-X7 represent H, F or CH3 independently, and Y1 and Y2 represent CH3, CH2F, CHF2 or CF3 independently. The polymerizable compound is particularly suitable for PSVA liquid crystal composition applied to a display or TV, and has no or obviously reduced image sticking after long-term operation.

Description

technical field [0001] The invention relates to a polymerizable liquid crystal compound and a liquid crystal composition containing the liquid crystal compound, as well as a display element or a liquid crystal display containing the liquid crystal composition. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has gone through a long period of basic research. After realizing mass production and commercialization, it has become a mainstream product in LCD applications due to its advantages of lightness, lightness, environmental protection, and high performance: whether it is a small size Mobile phone screens, large-sized notebook computers (NotebookPC) or monitors (Monitor), and large-scale LCD TVs (LCD-TV), TFT-LCD applications can be seen everywhere. [0003] The early commercial TFT-LCD products basically adopted the TN display mode, and the biggest problem was the narrow viewing angle. With the increase of product size, especially in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D333/56C09K19/34C09K19/42C09K19/44G02F1/1333C09K19/38
CPCC07D333/56C09K19/3491C09K19/3861C09K19/42C09K19/44G02F1/133365
Inventor 员国良邓佳张芳苗孟劲松
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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