高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (7): 1154.

• 研究简报 • 上一篇    下一篇

溶剂对SBS溶液浇铸膜形态结构及性能影响

王铀1,2, 董尧2, 沈静姝2, 龙程奋2   

  1. 1. 哈尔滨工业大学应用化学系, 哈尔滨 150001;
    2. 中国科学院化学所, 北京 100080
  • 收稿日期:1999-05-28 出版日期:2000-07-24 发布日期:2000-07-24
  • 通讯作者: 沈静姝(1941年出生),女,研究员,主要从事高分子结构与性能研究.
  • 基金资助:

    国家基础研究重大关键项目基金(批准号:9511)资助

Effect of Solvents on the Morphology and Properties of SBS Solution Cast Films

WANG You1,2, DONG Yao2, SHEN Jing-Shu2, LONG Cheng-Fen2   

  1. 1. Department of Applied Chemisty, Harbin University of Technology, Harbin 150001, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:1999-05-28 Online:2000-07-24 Published:2000-07-24

PDF (PC)

被引次数

4

关键词: 微观相分离, 选择性溶剂, 非选择性溶剂

Abstract: The effect of solvents on the morphology and properties of styrene-butadiene-styrene(SBS, {Mn=}99575, Mw/Mn=1.3, S/B=3∶7) triblock copolymer films was studied in this paper. The solvents used in the study are: ethylmethylketone, a preferential solvent for the PSblock; toluene, a non-preferential solvent for both the PSand the PBblocks; and mixed hexane/cyclohexane(2/5, in volume ratio), a preferential solvent for the PBblock. The morphology of samples cast from solutions from different solvents and then stained by RuO4 was observed by TEM. Moreover, the tensile properties and deformation recovery behavior for these samples were measured and the results are explained according to the microstructures observed.

Key words: Microphase separation, Preferential solvent, Non-preferential solvent

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