Synthesis and Characterization of Three-Benzene-Ring Banana-Shaped Liquid Crystals

MA Qing-lan; HUANG Yuan-ming

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Synthesis and Characterization of Three-Benzene-Ring Banana-Shaped Liquid Crystals

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

- Synthesis and Characterization of Three-Benzene-Ring Banana-Shaped Liquid Crystals
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 2, Pages: 161-165(2010)
- 作者机构：
  
  云南师范大学物理与电子信息学院,云南昆明 650092,E-mail: mql2008ky@126.com
- 作者简介：
- 基金信息：
- DOI：
  CLC： O753+.2
- Received：25 September 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2010，
  
  Published：30 April 2010
- 稿件说明：
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马青兰;黄远明. 三苯环香蕉形液晶的合成和表征[J]. 液晶与显示, 2010,25(2): 161-165

MA Qing-lan;HUANG Yuan-ming. Synthesis and Characterization of Three-Benzene-Ring Banana-Shaped Liquid Crystals[J]. 液晶与显示, 2010,25(2): 161-165
马青兰;黄远明. 三苯环香蕉形液晶的合成和表征[J]. 液晶与显示, 2010,25(2): 161-165 DOI：

MA Qing-lan;HUANG Yuan-ming. Synthesis and Characterization of Three-Benzene-Ring Banana-Shaped Liquid Crystals[J]. 液晶与显示, 2010,25(2): 161-165 DOI：

摘要

通过脂肪酸和三苯环化合物1

3-phenylene bis(4-hydroxybenzylideneamine) 的酯化反应合成了对称的同系物三苯环香蕉形分子化合物N

N-bis(4-(alkylcarbonyloxyl) benzylidene)benzene-1

3-diamine

其末端酯基尾链中的碳原子数为1~12。用偏光显微镜和差示扫描量热分析法对所合成的三苯环香蕉形分子化合物进行了细致的表征。结果表明:这些三苯环香蕉形分子化合物在第二次升温和第二次降温过程中均能够形成液晶相

其香蕉相分别在187~218 ℃(升温)和120~179 ℃(降温)之间形成。

Abstract

A homologous series of three-benzene-ring containing bent-core compounds N

N-bis(4-(alkylcarbonyloxyl)benzylidene)benzene-1

3-diamine were synthesized by esterifying aliphatic acids with the three-benzene-ring containing bent-core 1

3-phenylene bis(4-hydroxybenzylideneamine)

the number of carbon atoms in their two symmetric terminal arms is from 1 to 12. The mesomorphic properties of the homologous series of the three-benzene-ring containing bent-core compounds were characterized by means of polarized optical microscopy and differential scanning calorimetery. The results have demonstrated that the three-benzene-ring containing bent-core compounds can form mesophases.

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references

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