含氟三苯二炔类液晶化合物合成及其性质研究

章思汗; 刘可庆; 张智勇; 张开诚; 戴志群; 宣丽

doi:10.3788/YJYXS20153005.0769

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含氟三苯二炔类液晶化合物合成及其性质研究

材料物理和化学 | 更新时间：2020-08-12

- 含氟三苯二炔类液晶化合物合成及其性质研究
- Synthesis and properties of fluorinated Phenylethynyltolane compounds
- 液晶与显示 2015年30卷第5期页码：769-776
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 武汉轻工大学化学与环境工程学院,湖北武汉,430023
- 作者简介：
- 基金信息：
  
  国家自然科学基金(No.11074054,No.61378095)();武汉轻工大学研究生教育创新基金(No.2012cx022)()
- DOI：10.3788/YJYXS20153005.0769
  中图分类号： O621.3
- 收稿日期：2015-02-02，
  
  修回日期：2015-03-25，
  
  纸质出版日期：2015-10-05
- 稿件说明：
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章思汗, 刘可庆, 张智勇, 张开诚, 戴志群, 宣丽. 含氟三苯二炔类液晶化合物合成及其性质研究[J]. 液晶与显示, 2015,30(5): 769-776

ZHANG Si-han, LIU Ke-qing, ZHANG Zhi-yong, ZHANG Kai-cheng, DAI Zhi-qun, XUAN Li. Synthesis and properties of fluorinated Phenylethynyltolane compounds[J]. , 2015,30(5): 769-776
章思汗, 刘可庆, 张智勇, 张开诚, 戴志群, 宣丽. 含氟三苯二炔类液晶化合物合成及其性质研究[J]. 液晶与显示, 2015,30(5): 769-776 DOI： 10.3788/YJYXS20153005.0769.

ZHANG Si-han, LIU Ke-qing, ZHANG Zhi-yong, ZHANG Kai-cheng, DAI Zhi-qun, XUAN Li. Synthesis and properties of fluorinated Phenylethynyltolane compounds[J]. , 2015,30(5): 769-776 DOI： 10.3788/YJYXS20153005.0769.

摘要

目前

越来越多的液晶应用要求向列相液晶材料具有高双折射率性能。本文合成了5个高双折射率含氟三苯二炔类液晶化合物(Ⅳ)

经过IR

H NMR

C NMR谱图鉴定

这些化合物的分子结构完全正确;通过DSC和POM对其液晶相态测试的实验结果表明该类液晶化合物具有较低的熔点和相对较宽的向列相温度范围(达到100℃左右);对其折光率测试结果表明这些液晶化合物的双折射率(

)值在0.47以上

改善液晶光学性能。

Abstract

More and more application requires faster response speed for nematic liquid crystal materials at present. There is a direct relationship between response speed and birefringence. The fluorinated phenylethynyltolane compounds(Ⅳ)with high birefringence

low melting point were synthesized. Their structures were determined by IR

H NMR

C NMR. The liquid crystalline properties were tested by DSC and POM. It shows that these compounds synthesized exhibit low melting point and broad temperature range of nematic phase(with the range about 100℃). These compounds exhibit high birefringence(

0.47) after being tested birefringence. These characters are particularly attractive for increasing response speed of liquid crystal materials and improve the optical properties of liquid crystal.

关键词

Keywords

references

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