物理化学学报 >> 1993, Vol. 9 >> Issue (01): 121-124.doi: 10.3866/PKU.WHXB19930122

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聚离子复合物单分子膜的聚集结构研究

张亮仁; 金道森; 大石祐司; 梶山千里   

  1. 中国科学院兰州化学物理研究所，730000；日本九州大学工学部应用化学科
  • 收稿日期:1991-08-20 修回日期:1992-03-21 发布日期:1993-02-15
  • 通讯作者: 张亮仁

Studies on the Aggregation States of Polyion Complex Monolayer

Zhang Liang-Ren; Jin Dao-Sen; Oishi YuShi; Kajiyama Tisato   

  1. Lanzhou Institute of Chemical Physics, Academia Sinica; Department of Applied Chemistry, Faculty of Engineering, Kgushu University, Fukuoka, Japan
  • Received:1991-08-20 Revised:1992-03-21 Published:1993-02-15
  • Contact: Zhang Liang-Ren

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关键词: 单分子膜, 聚集结构, 阴离子型两性分子, 聚乙烯亚胺

Abstract: The aggregation structure of monolayer was discussed by the observations of electron diffraction patterns and bright field images. When 2C_(14)SNa was spread on pure water surface, a homogeneous monolayer was formed before compressing as the result of electrostatic repulsion among hydrophilic anionic groups, the crystallization was occurred in the process of compressing, i.e., it was a compressing crystallized monolayer. When 2C_(14)SNa was spread on PEI solution surface, a crystalline monolayer with an un-oriented domain structure was formed before compressing as the results of anchoring effect of ion complex and the weakened electrostatic repulsion, the orientation was occurred in the process of compressing, i.e., it was a compressing oriented crystalline monolayer. The formation of polyion complex at the air/water interface greatly affected the aggregation state of monolayer.

Key words: Monolayer, Aggregation structure, Anionic amphipile, Polyethyleneimine