含乙烷桥键负性液晶的合成及性能

别国军; 邓登; 栾允海; 辛兴东; 刘俞彤; 高嫒嫒; 杜渭松

doi:10.3788/YJYXS20173210.0794

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含乙烷桥键负性液晶的合成及性能

材料科学 | 更新时间：2020-08-12

- 含乙烷桥键负性液晶的合成及性能
- Synthesis and properties of ethane-bridged negative liquid crystal
- 液晶与显示 2017年32卷第10期页码：794-798
- 作者机构：
  
  西安彩晶光电科技股份有限公司, 陕西西安 710065
- 作者简介：
  
  [ "别国军(1981-), 男, 湖北天门人, 工程师, 主要从事光电材料的合成与研究。E-mail:biezhi510@163.com" ]
- 基金信息：
  
  2014年西安市科技企业小巨人资助项目(CX1416);Little Giant Project for Science and Technology Enterprises of Xi′an(CX1416)
- DOI：10.3788/YJYXS20173210.0794
  中图分类号： O625.22
- 收稿日期：2017-04-18，
  
  录用日期：2017-5-30，
  
  纸质出版日期：2017-10-05
- 稿件说明：
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别国军, 邓登, 栾允海, 等. 含乙烷桥键负性液晶的合成及性能[J]. 液晶与显示, 2017,32(10):794-798.

Guo-jun BIE, Deng DENG, Yun-hai LUAN, et al. Synthesis and properties of ethane-bridged negative liquid crystal[J]. Chinese journal of liquid crystals and displays, 2017, 32(10): 794-798.
别国军, 邓登, 栾允海, 等. 含乙烷桥键负性液晶的合成及性能[J]. 液晶与显示, 2017,32(10):794-798. DOI： 10.3788/YJYXS20173210.0794.

Guo-jun BIE, Deng DENG, Yun-hai LUAN, et al. Synthesis and properties of ethane-bridged negative liquid crystal[J]. Chinese journal of liquid crystals and displays, 2017, 32(10): 794-798. DOI： 10.3788/YJYXS20173210.0794.

摘要

为了满足液晶光学器件快速响应，提高相容性的要求，设计了含有乙烷桥键的负性液晶材料3PEPYO2。合成路线以丙基溴苯、对溴苄溴、2，3-二氟-4-乙氧基苯硼酸等为原料，通过采用格氏反应、Wittig反应和Suzuki等反应制备了3PEPYO2。并通过气相色谱-质谱联用仪、红外、核磁共振对其结构进行了表征。差热分析获知化合物分别于76.77℃进入液晶相。液晶综合参数测试结果表明化合物的Δ

值为0.1886，Δ

值为-0.798。这些化合物在制备快速响应液晶光学器件中可能会有潜在的应用价值。

Abstract

In order to meet the requirements of rapid response

and improve the compatibility

a negative liquid crystal material 3PEPYO2 containing ethane bridge bond was designed. The 3PEPYO2 was prepared by combination of Grignard reaction

Wittig reaction and Suzuki reaction

using propyl bromobenzene

bromobenzyl bromide and 2

3-difluoro-4-ethoxybenzeneboronic acid as raw materials. And the structure was characterized by GC-MS

IR and NMR. The results showed that the compound was immersed in liquid crystal phase at 76.77℃ with Δ

value of 0.188 6 and the Δ

value of -0.798. The compound may have potential application value in the preparation of fast response and high refractive liquid crystal optics.

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references

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