高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (2): 299.

• 论文 • 上一篇    下一篇

含甲氧基悬挂基聚甲亚胺醚的合成及其液晶行为

张其震1, 李小放1, 杨兆荷2   

  1. 1. 山东大学化学系, 济南, 250100;
    2. 山东大学晶体所
  • 收稿日期:1993-03-21 修回日期:1993-09-07 出版日期:1994-02-24 发布日期:1994-02-24
  • 通讯作者: 张其震,男,55岁,副教授.
  • 作者简介:张其震,男,55岁,副教授.
  • 基金资助:

    国家自然科学基金;中国科学院化学研究所高分子物理联合开放实验室科学基金

Synthesis and Liquid Crystalline Behavior of Polyazomethineethers Containing Pendant Groups of Methoxy

ZHANG Qi-Zhenl1, LI Xiao-Fang1, YANG Zhao-He2   

  1. 1. Department of Chemistry, Shandong University, Jinan, 250100;
    2. Institute of Crystal Materials, Shandong University
  • Received:1993-03-21 Revised:1993-09-07 Online:1994-02-24 Published:1994-02-24

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被引次数

4

摘要： 以单体双-(3-甲氧基-4-羟基苄叉)-4,4'-二亚胺基苯与α,ω-二溴烷,采用相转移催化聚醚化法合成7种主链型液晶聚甲亚胺醚,用1H NMR、IR、UV、元素分析及热台偏光显微镜、DSC和WAXD对聚合物的结构和液晶行为进行了表征。熔点和清亮点随间隔基数(n)改变,并有奇偶效应,呈现锯齿形变化规律。

关键词: 相转移催化, 液晶高分子, 聚甲亚胺醚, 双-(3-甲氧基-4-羟基苄叉)-4,4'-二亚胺基苯

Abstract: In this paper,seven main chain thermotropic polyazomethineethers (SAn, n=3～8 are 10synthesized from bis-(3-methoxy-4-hydroxybenzylidene)-4,4'-diimdophenyl.(BISPHENOL)and α,ω-dibromoalkane by phase-transfer-catalysis polyetherification reaction.Their structures and liquid crystalline properties have been characterized by 1H NMR, IR, UV,elementary analysis, polarized microscopy with a hot stage, DSC and X-ray diffractions.Their melting temperature and clearing temperature are affected by the number of methylene groups in the flexible spacer and the usual odd-even effect is observed.

Key words: Phase-transfer-catalysis, Liquid crystalline polymers, Polyazomethineethers, Bis-(3-methoxy-4-hydroxybenzylidene)-4,4'-diimidobenzene

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