物理化学学报 >> 1993, Vol. 9 >> Issue (05): 657-662.doi: 10.3866/PKU.WHXB19930516

研究论文 上一篇    下一篇

PTHF-b-PMMA/PVC共混体系的相容性和结晶行为

廖建辉; 刘立志; 王国英; 姜炳政   

  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
  • 收稿日期:1992-04-20 修回日期:1992-09-30 发布日期:1993-10-15
  • 通讯作者: 刘立志

The Compatibility and Crystallization of the Mixtures of Poly (Tetrahydrofuran-b-methyl methacrylate) Diblock Copolymer with Polyvinyl Chloride Homopolymer

Liao Jian-Hui; Liu Li-Zhi; Wang Guo-Ying; Jiang Bing-Zheng   

  1. Polymer Physics Laboratory, Changchun Institute or Applied Chemistry Academia Sinica, Changchun 130022
  • Received:1992-04-20 Revised:1992-09-30 Published:1993-10-15
  • Contact: Liu Li-Zhi

摘要: 研究了具有焓效应的聚四氢呋喃-聚甲基丙烯酸甲酯两嵌段共聚物与聚氯乙烯PTHF-b-PMMA/PVC)共混体系的相容性和结晶行为. 结果表明, 其相容性比AB/A型嵌段共聚物共混体系的相容性要好得多; 与PTHF部分相容的PVC对PTHF微区的结晶行为可产生很大的影响. 应用有关理论和模型很好地解释了结晶行为的这种变化.

关键词: 嵌段共聚物, 共混, 相容性, 结晶, 聚四氢呋喃-聚甲基丙烯, 酸甲酯嵌段共聚物(PTHF-b-PMMA)聚氯乙烯(PVC)

Abstract: The compatibility and crystallization behaviour of the mixtures of poly(tetrahy-drofuran-methyl methacrylate)diblock copolymer(PTHF-b-PMMA) with polyvinyl chloride has been studied. We found that the compatibility of these blends, in which there is special interaction between the homopolymer and the PMMA block of the copolymer, is much better than that of the AB/A type blends; and that the crystalli-zation rate and crystallinity of PTHF microdomain changed greatly due to the swollen by PVC homopolymer. In this paper, these changes in cryatallization are well explained according to the theories of block copolymer blends and the density gradient moldel presented by JIANG Ming.

Key words: Block copolymer, Blends, Compatibility, Crystallization, Poly(tetrhydrofuran-b-methyl methacrylate), Polyvinyl chloride