物理化学学报 >> 1991, Vol. 7 >> Issue (06): 666-672.doi: 10.3866/PKU.WHXB19910607

研究论文 上一篇    下一篇

嵌段共聚物/均聚物共混体系的结晶行为 I. 非球状共聚物胶束的作用

刘立志; 石晓虹; 方天如; 姜炳政   

  1. 中国科学院长春应用化学研究所,长春 130022
  • 收稿日期:1990-07-06 修回日期:1991-01-28 发布日期:1991-12-15
  • 通讯作者: 姜炳政

The Crystallization Behaviour of Block Copolymer/Homopolymer Blends I. Influence of Nonspherical Micelle on Crystallization Behaviour in Dilute Solid Solutions

Liu Li-Zhi; Shi Xiao-Hong; Fang Tian-Ru; Jiang Bing-Zheng   

  1. Changchun Institute of Applied Chemistry Academia Sinica, Changchun 130022
  • Received:1990-07-06 Revised:1991-01-28 Published:1991-12-15
  • Contact: Jiang Bing-Zheng

摘要: 将Leibler, Whitmore和Mayes等近期关于非晶嵌段共聚物“稀固体溶液”的理论应用于嵌段聚共聚物结晶型“稀固体溶液”结晶行为的研究。发现球状共聚物胶束既可起成核剂作用, 也可起抑制成核作用。报导了当共聚物胶束由球形变为非球形时, 共聚物胶束的上述作用都会发生较大的变化, 并根据Leibler和Mayes分别提出的球形和非球形胶束理论解释了这一实验现象。

关键词: 嵌段共聚物, 共混, 胶束, 形态, 结晶行为

Abstract: The effect of micelle on crystallization behaviour of dilute poly(methyl methacrylate-b-tetrahydrofuran) diblock copolymer/tetrahydrofuran homopolymer, dilute poly (ethylene-b-styrene-b-ethylene) triblock copolymer/ethylene homopolymer solutions has been studied. The results show that with the structural teansitions from spherical to nonspherical micelle in the blends, great changes in the nucleation and spherulite morphologies take place.

Key words: Block copolymer, Blends, Micelle, Morphology, Crystallization