高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (2): 313.

• 论文 • 上一篇    下一篇

含间苯连接的聚醚醚酮酮的等温结晶过程和形态结构

陈晔1, 张雪艳1, 杨德才1, 王军佐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
  • 收稿日期:1996-04-10 出版日期:1997-02-24 发布日期:1997-02-24
  • 通讯作者: 杨德才.
  • 作者简介:陈哗, 女, 42岁、高级工程师.
  • 基金资助:

    国家自然科学基金;和国家科委基础性研究重大关键项目资助

Crystallization Process and Morphology Structure of Poly(aryl ether ether ketone ketone)Containing Meta-phenyl Links

CHEN Ye1, ZHANG Xue-Yan1, YANG De-Cai1, WANG Jun-Zuo2, WU Zhong-Wen2   

  1. 1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022;
    2. Department of Chemistry, Jilin University
  • Received:1996-04-10 Online:1997-02-24 Published:1997-02-24

摘要: 用透射电子显微镜和电子衍射方法研究了含间苯连接的聚醚醚酮酮(PEEKmK)溶液浇铸薄膜的等温结晶过程和形态结构.结果表明,PEEKmK无论从玻璃态结晶还是从熔体结晶均能形成2种不同取向的结晶形态结构,即平放片晶和侧放片晶;前者c轴垂直于膜平面,后者c轴平行于膜平面.其结晶发展过程为先形成平放单晶状片晶,随着时间的增长,在单晶上开始生长侧放片晶,逐渐发展形成球晶,最终形成2种不同取向的单晶和球晶共存的结晶形态结构.

关键词: 聚醚醚酮酮, 结晶过程, 形态结构

Abstract: The crystallization process and morphology of poly (aryl ether ether ketone ketone) containing meta-phenyl links (PEEKmK) have been investigated by transmission electron microscopy and electron diffraction.The results indicate that the thin films of PEEKmKisothermally crystallized from both the glassy state and the melt at the temperature range of 180-250 ℃ consist of two kinds of morphological forms, i.e.large (order of um), flat-on single crystals and narrow, lath-like, edge-on lamellae.The latter consists of the spherulites.Meanwhile, the growing process of the two kinds of morphological forms has been discussed.

Key words: Poly (aryl ether ether ketone ketone), Crystallization process, Morphology structure

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