Mechanical properties of polyelectrolyte multilayer self-assembled films

被引：14

作者：

Dai, XH ^{[1
]}

Zhang, YJ ^{[1
]}

Guan, Y ^{[1
]}

Yang, SG ^{[1
]}

Xu, J ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Ctr Mol Sci, Beijing 100080, Peoples R China

来源：

THIN SOLID FILMS | 2005年 / 474卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

polymers; multilayers; tribology; atomic force microscopy;

D O I：

10.1016/j.tsf.2004.08.084

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanical properties of electrostatic self-assembled multilayer films from polyacrylic acid (PAA) and C-60-ethylenediamine adduct (C-60-EDA) or poly(allylamine hydrochloride) (PAH) were evaluated by atomic force microscopy (AFM) wear experiments. Because of the higher molecular weight of PAH, the wear resistance of the (PAH/PAA)(10) film is higher than that of the (PAH/ PAA)(2)(C-60-EDA/PAA)(8) film; that is, the former is mechanically more stable than the latter. The mechanical stability of both films can be improved significantly by heat treatment, which changes the nature of the linkage from ionic to covalent. The AFM measurement also reveals that the (PAH/PAA)(2)(C-60-EDA/PAA)(8) film is softer than the (PAH/PAA)(10) film. The friction properties of the heated films were measured. These films can be developed as potential lubrication coatings for microelectromechanical systems. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：159 / 164

页数：6

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