Synthesis and Application of Fluorinated Diphenyl Acetylene Negative Liquid Crystals Containing Dicyclohexyl

CAO Xiu-ying; ZHAO Min; DAI Xiu-wen; WEN Jian-xun

doi:10.3788/YJYXS20132806.0843

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Synthesis and Application of Fluorinated Diphenyl Acetylene Negative Liquid Crystals Containing Dicyclohexyl

Material Physics & Chemistry | 更新时间：2020-08-12

- Synthesis and Application of Fluorinated Diphenyl Acetylene Negative Liquid Crystals Containing Dicyclohexyl
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 6, Pages: 843-848(2013)
- 作者机构：
  
  1. 华东理工大学化学与分子工程学院, 上海 200237
  2. 上海天问化学有限公司上海,200232
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132806.0843
  CLC： O753+.2
- Received：18 February 2013，
  
  Revised：05 June 2013，
  
  Published：15 December 2013
- 稿件说明：
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曹秀英, 赵敏, 戴修文, 闻建勋. 双环己基含氟二苯乙炔类负性液晶的合成及应用[J]. 液晶与显示, 2013,28(6): 843-848

CAO Xiu-ying, ZHAO Min, DAI Xiu-wen, WEN Jian-xun. Synthesis and Application of Fluorinated Diphenyl Acetylene Negative Liquid Crystals Containing Dicyclohexyl[J]. , 2013,28(6): 843-848
曹秀英, 赵敏, 戴修文, 闻建勋. 双环己基含氟二苯乙炔类负性液晶的合成及应用[J]. 液晶与显示, 2013,28(6): 843-848 DOI： 10.3788/YJYXS20132806.0843.

CAO Xiu-ying, ZHAO Min, DAI Xiu-wen, WEN Jian-xun. Synthesis and Application of Fluorinated Diphenyl Acetylene Negative Liquid Crystals Containing Dicyclohexyl[J]. , 2013,28(6): 843-848 DOI： 10.3788/YJYXS20132806.0843.

摘要

设计并合成了4个双环己基含氟二苯乙炔类负性液晶化合物。4个化合物的相变研究是通过偏光显微镜和差示扫描量热仪检测的。合成的液晶化合物都具有高双折射率，低黏度及高达270℃的清亮点，只有向列相的液晶化合物可以用来制备性能良好的高双折射率混合物液晶，也可用于自适应光学系统空间光调制器。4个目标化合物是通过sonogashira交叉偶联反应得到的。

Abstract

Four fluorinated diphenyl acetylene negative liquid crystal compounds containing dicyclohexyl were designed and synthesized. Target liquid crystal compounds were measured by polarised optical microscopy and differential scanning calorimetry and their good mesomorphic properties were obtained. The target compounds obtained high birfringence

low rotational viscosity and high clearing point about 270℃. The nematic liquid crystals could satisfy the requirements of a high temperature component in TFT-LCD

it also could be used in adaptive system like as application in construction of spatial light modulator. Four target compounds were synthesized by sonogashira coupling reaction.

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references

Wen C H, Wu S T. Dielectric heating effects of dual-frequency liquid crystals [J]. Appl. Phys. Lett., 2005, 86(23):231104(1-3).[2] Dziaduszek J, Kula P, Dbrowski R. General synthesis method of alkyl-alkoxy multifluorotolanes for negative high birefringence nematic mixtures [J].Liquid Crystals, 2012, 39(2): 239-247.[3] Ishinabe T, Miyashita T, Uchida T. Wide-viewing-angle polarizer with a large wavelength range [J].Jpn. J. Appl. Phys., 2002, 41(7A):4553-4558.[4] Oh-e M, Kondo K. Electro-optical characteristics and switching behavior of the in-plane switching mode [J].Appl. Phys. Lett., 1995, 67(26):3895-3897.[5] Itoh Y, Seki H, Uchida T,et al. A double-layer electrically controlled birefringence liquid-crystal display with a wide-viewing-angle cone [J].Jpn. J. Appl. Phys., 1991, 30(7B):L1296 - L1299.[6] 张然,彭增辉,刘永刚,等. 高低黏度液晶的合成及性能研究 [J]. 液晶与显示, 2009, 24(6): 789-793.[7] Nabor M F, Nguyen H T, Destrade C, et al. Synthesis and ferroelectric properties of laterally substituted fluoro liquid crystals derived from 4-mercaptobenzoic acid [J]. Liq. Cryst., 1991, 10(6):785-797.[8] Li H F, Wen J X. Fluorinated tolan-type nematic mesogens containing a 1,3-dioxan unit [J]. Liquid Cystals, 2001, 28(6):913-917.

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Related Institution

School of Chemistry Engineering, East China University of Science and Technology

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SCNU-TUE Joint Lab of Device Integrated Responsive Materials （DIRM）， National Center for International Research on Green Optoelectronics， South China Normal University

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology， Institute of Electronic Paper Displays， South China Academy of Advanced Optoelectronics， South China Normal University

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