物理化学学报 >> 1994, Vol. 10 >> Issue (05): 428-433.doi: 10.3866/PKU.WHXB19940511

研究论文 上一篇    下一篇

聚四氢呋喃-聚甲基丙烯酸甲酯两嵌段共聚物的结晶行为

刘立志, 姜炳政, 周恩乐   

  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:1992-12-11 修回日期:1993-03-01 发布日期:1994-05-15
  • 通讯作者: 刘立志

Crystallization Behavior of Poly(tetrahydrofuran-b-methyl methacrylate) Diblock Copolymer

Liu Li-Zhi, Jiang Bing-Zheng, Zhou  En-Le   

  1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1992-12-11 Revised:1993-03-01 Published:1994-05-15
  • Contact: Liu Li-Zhi

摘要:

报导了系列聚四氢呋喃-聚甲基丙烯酸甲酯结晶-非晶(硬段型)两嵌段共聚物的结晶行为,结果表明,其微相分离和结晶规律与文献上唯一进行过系统研究的同类嵌段共聚物(PEO-b-PS)都有较大的差别;结晶段结晶能力的大小是制约这类体系微相分离和结晶规律的一个重要因素.

关键词: 嵌段共聚物, 相分离, 结晶

Abstract:

Crystallization behavior of a series of newly synthesized poly (tetrahydrofuran-b-methyl methacrylate) diblock copolymer has been studied by differential scanning calorimetry (DSC) and X-ray scattering and diffraction techniques. The results show that the microphase separation and crystallization are very different from that of poly (ethylene oxid-b-styrene) diblock copolymer, the only one systematically investigated in literature. Our results suggeste that crystalline ability of the crystallizable block of such type of diblock copolymer is one of the important factors governing its microphase separation and crystallization.

Key words: Block copolymer, Phase separation, Crystallization