高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (10): 1911.

• 论文 • 上一篇    下一篇

甲基取代的新型聚醚醚酮及其共聚物的合成、表征和性能研究

李慧1,2, 周宏伟2, 陈春海2, 吴忠文2, 张榕本1, 于澍燕1   

  1. 1. 中国科学院化学研究所高分子物理与化学国家重点实验室, 北京 100080;
    2. 吉林大学麦克德尔米德实验室, 国家八六三计划特种工程塑料研究开发中心, 长春 130012
  • 收稿日期:2002-09-11 出版日期:2003-10-24 发布日期:2003-10-24
  • 通讯作者: 陈春海(1969年出生),男,博士,教授,从事芳杂环聚合物研究.E-mail:cch-zhw@163.com E-mail:cch-zhw@163.com
  • 基金资助:

    国家自然科学基金(批准号:20104003)资助

Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers

LI Hui1,2, ZHOU Hong-Wei2, CHEN Chun-Hai2, WU Zhong-Wen2, ZHANG Rong-Ben1, YU Shu-Yan1   

  1. 1. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    2. Jilin University Alan G. MacDiarmid Laboratory, National Plan R&D Center for High-Performance Engineering Plastics, Changchun 130023, China
  • Received:2002-09-11 Online:2003-10-24 Published:2003-10-24

摘要: 设计合成了一种甲基侧基取代的可溶性聚芳醚酮均聚物PETMDEK,同时合成了一系列不同比例的无规共聚物PETMDEK-PEDEK,考察了共聚组成对聚合物性能的影响.随着共聚物中可溶性PETMDEK组分的不断增加,其聚集态结构也发生变化,出现从结晶→液晶→结晶→无定形固体的转变,同时溶解性也由可溶向不溶转变.本文还侧重研究了PETMDEK组分摩尔分数为20%的无规共聚物的热致液晶行为.

关键词: 聚芳醚酮, 无规共聚物, 热致液晶

Abstract: Anovel soluble methyl-substituted poly(ether ether ketone) PETMDEK was synthesized for the first time by aromatic nucleophilic substitution polycondensation.Aseries of random copolymers PETMDEK-PEDEK with different compositions were prepared and their properties were studied.The copolymers exhibit changes from crystals→liquid crystals→crystals→amorphous solid transitions with the increase of the content of PETMDEK.The copolymers also change from soluble substance to insoluble one.The thermotropic liquid crystalline behavior of 20% PETMDEK-PEDEK copolymer was characterized by DSC and PLM.

Key words: Poly(ether ether ketone)s, Random copolymers, Thermotropic liquid crystal

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