高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (2): 252.

• 论文 • 上一篇    下一篇

一个判别液晶聚合物状态的新方法

朱珍, 吴和融, 李世瑨   

  1. 华东化工学院材料科学研究所, 上海, 200237
  • 收稿日期:1991-01-10 出版日期:1992-02-24 发布日期:1992-02-24
  • 通讯作者: 朱珍
  • 基金资助:

    国家自然科学基金

A New Method for Judging the Phase States of Liquid Crystalline Polymers

ZHU Zhen, WU He-rong, LI Shi-Jin   

  1. Institute of Material Science and Engineering, East China University of Chemical Technology, Shanghai, 200237
  • Received:1991-01-10 Online:1992-02-24 Published:1992-02-24

摘要: 伴随液晶相转变而产生的转变焓、转变熵可提供有关各相的结构、状态及有序度等信息.本文从动力学、热力学角度分析了液晶聚合物从各向同性熔体冷却时系统的热熵变化,建立了液晶聚合物升降温过程中的热熵图,提出了定量判断液晶聚合物从各向同性熔体冷却后所处状态的新方法.

关键词: 热致型液晶, 聚酯, 相态, 液晶玻璃态, 相转变函数

Abstract: The phase states of thermotropic liquid crystalline polymers (LCPs) cooled from isotropic melt were analyzed on the basis of thermodynamics and kineticsThe thermal entropy scheme of LCPs on heating and cooling was establishedAnd a new method for judging the phase states of LCPs was proposedThe method was applied to a series of polyesters, and the phase states of the polyesters cooled from isotropic melt were obtained.

Key words: Thermotropic liquid crystals, Polyesters, Phase state, Liquid crystalline glass, Phase transition function

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