高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (2): 371.

• 研究简报 • 上一篇    下一篇

聚苯乙烯-b-聚氧乙烯-b-聚苯乙烯三嵌段共聚物的自组装

袁建军1, 李英顺2, 李小琴1, 张小红1, 程时远1, 江雷2, 封麟先3   

  1. 1. 湖北大学化学与材料科学学院, 武汉 430062;
    2. 中国科学院化学研究所, 北京 100080;
    3. 浙江大学高分子科学研究所, 杭州 310027
  • 收稿日期:2001-09-11 出版日期:2003-02-24 发布日期:2003-02-24
  • 通讯作者: 程时远(1942年出生),男,教授,博士生导师,从事高分子材料研究.E-mail:scheng@public.wh.hb.cn E-mail:scheng@public.wh.hb.cn
  • 基金资助:

    国家重点基础研究发展规化(973)项目(批准号:G1999064505)资助

Self-assembly of Polystyrene-b-poly(ethylene oxide)-b-polystyrene Triblock Copolymer

YUAN Jian-Jun1, LI Ying-Shun2, LI Xiao-Qin1, ZHANG Xiao-Hong1, CHENG Shi-Yuan1, JIANG Lei2, FENG Lin-Xian3   

  1. 1. College of Chemistry and Materials Science, Hubei University, Wuhan 430062, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijng 100080, China;
    3. Institute of Polymer Science, Zhejiang University, Hangzhou 310027, China
  • Received:2001-09-11 Online:2003-02-24 Published:2003-02-24

PDF (PC)

被引次数

43

关键词: 囊泡, 嵌段共聚物, 自组装, 分子聚集体

Abstract: In this paper, the self-assembly of PS43-b-PEO45-b-PS43 triblcok copolymer was investigated. The colloids were made by firstly dissolving the copolymer in the common solvents, including THF, 1,4-dioxane, and DMF, then droping water into the corresponding copolymer solution to induce the self-assembly. The aggregates prepared were characterized with TEM and AFM techniques. The experimental results demonstrated that the self-assembled vesicles were formed when THF and 1,4-dioxane were used as the common solvents to dissolve the copolymer, comparatively, using DMF as the common solvent resulted in the formation of spherical aggregates. The self-assembled aggregates observed, possessing hierarchical structures, could be used as either the nanostructures themselves for drug delivery systems, separations, catalysts, and so on, or templates or building blocks for more complex structures.

Key words: Vesicles, Block copolymer, Self-assembly, Molecular aggregates

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