The Morphology of Self-assembled Monolayers of Mercapto Methoxy Poly(ethylene glycol) and Its Complex with Poly(acrylic acid)

Acta Scientiarum Naturalium Universitatis Pekinensis

The Morphology of Self-assembled Monolayers of Mercapto Methoxy Poly(ethylene glycol) and Its Complex with Poly(acrylic acid)

HOU Shifeng，LI Qiguang，LIU Zhongfan

Center for Nanoscale Science and TechnologyCNST College of Chemistry and Molecular Engineering Peking University, Beijing, 100871

Received:2000-07-02 Online:2001-03-20 Published:2001-03-20

末端硫醇化聚乙二醇分子自组装膜及复合膜的表面形态研究

侯士峰,李启广,刘忠范

北京大学化学与分子工程学院，北京，100871

Abstract

Abstract: The morphology of self-assembled monolayers of mercapto methoxy poly(ethylene glycol) (MPEG) and its complex film with poly(acrylic acid) were investigated with atomic force microscopy. The roughness of the complex film was affected by the concentration and the ionic strength of PAA solution, and some rougher complex film were formed in a solution with high concentration of PAA and stronger ionic strength.

Key words: mercapto methoxy poly(ethylene glycol) of self-assembled monolayers, complex film, atomic force microscopy

摘要： 利用AFM技术研究了聚丙烯酸在末端硫醇化的聚乙二醇分子自组装膜表面形成复合膜的表面形态及影响因素，发现溶液浓度和离子强度对复合膜的表面形态及粗糙度有较大影响。

关键词: 末端硫醇化聚乙二醇分子自组装膜, 复合膜, AFM

CLC Number:

O621

HOU Shifeng,LI Qiguang,LIU Zhongfan. The Morphology of Self-assembled Monolayers of Mercapto Methoxy Poly(ethylene glycol) and Its Complex with Poly(acrylic acid)[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

侯士峰,李启广,刘忠范. 末端硫醇化聚乙二醇分子自组装膜及复合膜的表面形态研究[J]. 北京大学学报（自然科学版）.

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