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Polymerizable polar compound, liquid crystal composition, and liquid crystal display element

A compound and carbon number technology, applied in the field of polymerizable polar compounds, can solve the problem of insufficient horizontal orientation of liquid crystal molecules, and achieve the effects of appropriate optical anisotropy, high voltage retention, and low viscosity

Active Publication Date: 2020-03-24
JNC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ability of these compounds to horizontally align liquid crystal molecules is not sufficient

Method used

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  • Polymerizable polar compound, liquid crystal composition, and liquid crystal display element
  • Polymerizable polar compound, liquid crystal composition, and liquid crystal display element
  • Polymerizable polar compound, liquid crystal composition, and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0368] The present invention will be described in more detail through examples (including synthesis examples and use examples of elements). The present invention is not limited by these examples. The present invention comprises a mixture of the composition of use example 1 and the composition of use example 2. The present invention also includes mixtures prepared by mixing at least two of the compositions of the use examples.

[0369] 1. Examples of compound (1)

[0370] Compound (1) was synthesized by the procedures shown in Examples. Unless otherwise specified, the reaction was carried out under a nitrogen atmosphere. Compound (1) was synthesized by the procedures shown in Example 1 and the like. The synthesized compounds are identified by methods such as nuclear magnetic resonance (nuclear magnetic resonance, NMR) analysis. The properties of the compound (1), the liquid crystal compound, the composition, and the device were measured by the following methods.

[0371] ...

Synthetic example 1

[0418] Synthesis of Compound (No.164)

[0419]

[0420] Step 1

[0421] Compound (T-1) (30g), 3,4-dihydro-2H-pyran (23.3g), pyridine p-toluenesulfonate (Pyridinium p-Toluenesulfonate, PPTS) (5.80g), dichloromethane ( 300ml) into the reactor and stirred at 50°C for 10 hours. After the insoluble matter was separated by filtration, the reaction mixture was poured into water, and the aqueous layer was extracted with dichloromethane. The organic layer was washed with water and dried over anhydrous magnesium sulfate. The solution was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (volume ratio, heptane:ethyl acetate=2:1) ​​to obtain compound (T-2) (39.5 g; 80%).

[0422] Step 2

[0423] Compound (T-2) (39.5g), tetrahydrofuran (THF) (400ml), MeOH (100ml) and water (400ml) were put into the reactor and cooled to 0°C. Lithium hydroxide monohydrate (15.4 g) was added thereto, returned to room temperature, and stirred for 12 hours. ...

Synthetic example 2

[0437] Synthesis of Compound (No.165)

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PUM

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Abstract

Provided are: a polar compound having high chemical stability, high ability for aligning liquid crystal molecules, and high solubility in a liquid crystal composition, and showing a high voltage retention rate when used in a liquid crystal display element; and a composition comprising the compound. The compound is represented by formula (1). In formula (1), for example, P denotes a moiety represented by any of formulas (1b)- formula (1i), Sp denotes a single bond, Z denotes -COO-, and A denotes 1,4-phenylene.

Description

technical field [0001] The invention relates to a polymerizable polar compound, a liquid crystal composition and a liquid crystal display element. More specifically, the present invention relates to a polymerizable polar compound having an acryloyloxy group substituted by a polar group such as hydroxyalkyl, and a liquid crystal containing the compound and having a positive or negative dielectric constant anisotropy A composition, and a liquid crystal display element comprising the composition. Background technique [0002] In liquid crystal display elements, the classification based on the operation mode of liquid crystal molecules is phase change (phase change, PC), twisted nematic (twisted nematic, TN), super twisted nematic (super twisted nematic, STN), electronically controlled birefringence ( Electrically controlled birefringence (ECB), optically compensated bend (OCB), in-plane switching (IPS), vertical alignment (vertical alignment, VA), fringe field switching (fring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/732C07C69/90C07C69/92C07C69/94C07C69/96C09K19/12C09K19/18C09K19/20C09K19/30C09K19/32C09K19/34C09K19/56G02F1/13G02F1/1337
CPCC07C69/732C07C69/90C07C69/92C07C69/94C07C69/96C09K19/12C09K19/18C09K19/20C09K19/30C09K19/32C09K19/34C09K19/56G02F1/13G02F1/1337C07D207/448C09K19/16C09K2019/122C09K2019/161C09K2019/163C09K2019/3422C09K19/2014C09K2019/0448C09K19/322C09K2019/3425C07C13/28C07C69/76C07C69/24C07C2603/40C07B2200/07C07C43/225C07C2602/44C07C2603/18C07C69/716C07C255/50C07C255/54
Inventor 矢野智広近藤史尚荻田和寛佐郷弘毅平井吉治
Owner JNC CORP
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