高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (6): 988.

• 研究快报 • 上一篇    下一篇

热致液晶含氯侧基聚芳醚酮的单晶状条带织构

富露祥1, 张善举1, 张健1, 刘景江1, 杨德才1, 孙辉2, 王贵宾2, 吴忠文2   

  1. 1. 中国科学院长春应用化学研究所高分子物理开放实验室, 长春 130022;
    2. 吉林大学化学系, 长春 130023
  • 收稿日期:1999-02-02 出版日期:2000-06-24 发布日期:2000-06-24
  • 通讯作者: 杨德才(1940年出生),男,研究员,博士生导师,主要从事高分子凝聚态结构的研究.
  • 基金资助:

    国家自然科学基金(批准号:29974032);国家科技部基础性研究重大关键项目基金(批准号:G-12)

The Single Crystal-like Banded Textures in the Films of a Thermotropic Liquid Crystalline Poly(aryl ether ketone) Containing a Lateral Chloro Group

FU Lu-Xiang1, ZHANG Shan-Ju1, ZHANG Jian1, LIU Jing-Jiang1, YANG De-Cai1, SUN Hui2, WANG Gui-Bin2, WU Zhong-Wen 2   

  1. 1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. Department of Chemistry, Jilin University, Changchun 130023, China
  • Received:1999-02-02 Online:2000-06-24 Published:2000-06-24

关键词: 聚芳醚酮, 热致液晶聚合物, 单晶状条带织构

Abstract: The banded textures in the films of a thermotropic liquid crystalline poly(aryl ether ketone) containing a lateral chloro group have been studied by means of transmission electron microscopy(TEM), electron diffraction(ED) and atomic force microscopy(AFM). The crystallization induced banded texture without external shear can be formed when the thin films were annealed at the temperature range(320—330 ℃) of the liquid crystalline state from the melt. The results show that the banded regions have high orientation of single crystal based on the orthorhombic packing and the growing direction of the bands is along the b axis of the crystals. This kind of single crystal like bands is due to the different orientation of the packing molecular chains. The molecular chains of the dark bands in the bright field electron micrograph are perpendicular to the film plane, while the ones of the bright bands are tilt along the b axis with the tilt angle upto ±20°.

Key words: Poly(aryl ether ketone), Thermotropic liquid crystal, Single crystal-like banded texture

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