高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (5): 971.

• 研究论文 • 上一篇    下一篇

端基结构对超支化聚合物静电吸附自组装行为的影响

邱藤, 唐黎明, 庹新林, 由虎, 王晓工, 刘德山   

  1. 清华大学化工系高分子研究所, 材料科学与工程研究院, 北京 100084
  • 收稿日期:2003-03-17 出版日期:2004-05-24 发布日期:2004-05-24
  • 通讯作者: 唐黎明(1967年出生),男,博士,副教授,从事精细高分子及功能高分子研究.E-mail:tanglm@tsinghua.edu.cn E-mail:tanglm@tsinghua.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20204005和50233030);清华大学基础研究基金(批准号:JC2002030)资助

Effect of the End-group Structure of Hyperbranched Polymers on Their Electrostatic Self-assembly Behavior

QIU Teng, TANG Li-Ming, TUO Xin-Lin, YOU Hu, WANG Xiao-Gong, LIU De-Shan   

  1. Institute of Polymer Science, Department of Chemical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2003-03-17 Online:2004-05-24 Published:2004-05-24

PDF (PC)

被引次数

25

摘要： 研究了3种具有相同骨架结构、不同端基的超支化聚合物与线型聚阳离子(PDAC)的静电吸附自组装.结果表明,超支化聚合物的组装过程与线型弱酸聚合物相似,都受溶液pH值与无机盐浓度的影响,但影响程度随端基结构不同而变化.此外,对以超支化聚合物为最外层的不同自组装膜的表面形貌及接触角进行了表征,其表面形貌及亲水性随端基结构的不同而不同.

关键词: 超支化聚合物, 自组装, 溶液条件, 端基结构

Abstract: The electrostatic adsorption self-assembly behavior of three anionic hyperbranched polymers with the same backbone but different end-groups in the presence of poly(diallyldimethylammonium chloride)(PDAC) were investigated. The three hyperbranched polyanions all showed good self-assembly properties and the increase of bilayers were monitored by UV-Vis spectra. Similar to the linear weak polyanions, their self-assembly were much affected by the solution conditions, such as pH value and salt concentration. However, these behavior under different solution conditions was also controlled by the variation of their end-group structures. Furthermore, the surface morphology and the contact angle for water of the self-assembly film with hyperbranched polymers as the out-layer were also affected by the variation of end-group strutures of these polymers.

Key words: Hyperbranched polymer, Self-assembly, Solution condition, End-group structure

中图分类号: 

TrendMD: