玻璃表面PS-r-P4-VP共聚物“刷子”的制备与表征  

The Preparation and Characterization of Polymer Brush Graft on the Surface of Glass by Random Copolymer of PS-r-P4-VP

作　　者：朱海燕[1] 王雪兆[1] 尹家兴[1] 李丁丁[1] 魏永豪[1] 陈志军[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002

出　　处：《高分子材料科学与工程》2012年第6期130-133,共4页Polymer Materials Science & Engineering

基　　金：河南省高校科技创新人才支持计划资助项目(2008HASTIT019);国家自然科学基金面上项目(20976168)

摘　　要：采用原位活性聚合法在玻璃表面接枝聚苯乙烯与聚4-乙烯吡啶无规共聚物(PS-r-P4-VP)"刷子",并对其进行表征。X射线光电子能谱(XPS)结果表明,玻璃表面接枝共聚物后,Si(1s/2p)、O(1s)的吸收峰强度降低,C(1s)吸收峰强度增强并出现了N(1s)(吡啶环)的特征吸收峰;椭圆偏振仪测试结果表明,接枝PS-r-P4-VP的厚度随聚合时间延长而增加,表面均方粗糙度则减小;原子力显微镜(AFM)观察结果表明,随着St配比的增加,玻璃表面聚合物"刷子"粗糙度降低;红外光谱(FT-IR)表明,玻璃表面的聚合物为PS-r-P4-VP;透光率测试表明,在玻璃表面接枝PS-r-P4-VP并不影响玻璃的透光率;接触角测试结果表明,接枝共聚物的玻璃表面接触角随着St比例的增加而显著增大。A brush-like polystyrene-random-poly（4-vinylpyridine）（PS-r-P4-VP） was synthesized on the surface of the glass by using living free radical polymerization.The results of X-ray photoelectron spectroscopy（XPS）show that absorption peak of Si（2p）,Si（1s） and O（1s） decreases when grafted PS-r-P4-VP and there appears the absorption peaks of N（1s）（pyridine ring）.The thickness of PS-r-P4-VP onto the surface of glass increases with increasing reacted time.Atomic force microscopy（AFM） results show that the roughness decreases with increasing the ratio of styrene.Fourier transform infrared spectroscopy（FTIR） shows that PS-r-P4-VP is covalently anchored onto the surface of glass.Transmittance shows that grafted PS-r-P4-VP on the surface of glass does not affect the transmittance.The contact angle results show that contact angle of glass grafted PS-r-P4-VP increases with the ratio of PS increasing.

关 键 词：原位接枝 聚合物“刷子” 聚苯乙烯与聚4-乙烯吡啶无规共聚物 

分 类 号：TQ316.343[化学工程—高聚物工业]