高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (12): 2070.

• 研究简报 • 上一篇    下一篇

4-苯甲酰氧基苯甲酸液晶性的研究

苑晶, 黄迪允, 姜翠红, 张广利, 张鸿志   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:1996-08-01 出版日期:1997-12-24 发布日期:1997-12-24
  • 通讯作者: 张广利
  • 作者简介:苑晶, 女, 26岁, 博士
  • 基金资助:

    国家自然科学基金

Studies on Liquid Crystallinity of 4-Benzoyloxybenzoic Acid

YUAN Jing, HUANG Di-Yun, JIANG Cui-Hong, ZHANG Guang-Li, ZHANG Hong-Zhi   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871
  • Received:1996-08-01 Online:1997-12-24 Published:1997-12-24

PDF (PC)

被引次数

6

关键词: 4-苯甲酰氧基苯甲酸, 4-乙酰氧基苯甲酸, 4-(4-苯甲酰氧基苯甲酰氧基)苯甲酸, 双分子缔合物, 液晶性

Abstract: The liquid crystallinity of the dimer of 4-benzoyloxybenzoic acid (BBA), with ex-cellent melt flow property was observed.The axial ratio (l/d) of (BBA), was calcu1ated tobe 5- 8 whlch is large enough to exhlbit Iiquid crystalline phase.The nematic phase was sta-ble at 230 C.At higher temperature(270C), the transesterification reaction occurred.Theeutectic temperature of BBAand 4-acetoxybenzoic acid is l75 C。

Key words: 4-Benzoyloxybenzoic acid, 4-Acetoxybenzoic acid, 4-(4-Benzoyloxybenzoyloxy)benzoic acid, Dimer, Liquid crystallinity

中图分类号: 

TrendMD: