单分散甲基丙烯酸甲酯-苯乙烯共聚物微球的制备与表征  

Preparation and Characterization of Monodisperse Methyl Methacrylate-Styrene Copolymer Microspheres

作　　者：聂王焰[1] 李洋[1] 周艺峰[1] 倪士宝[1] 

机构地区：[1]安徽大学化学化工学院与安徽省绿色高分子材料重点实验室,合肥230039

出　　处：《涂料工业》2008年第11期4-7,共4页Paint & Coatings Industry

基　　金：安徽省教育厅基金资助项目(20045kj016)

摘　　要：以聚乙烯吡咯烷酮(PVP)为分散剂,偶氮二异丁腈(AIBN)为引发剂,乙醇/水混合溶剂为分散介质,用分散聚合方法制备出微米级甲基丙烯酸甲酯-苯乙烯共聚物微球。研究了分散介质组成、单体质量比、分散剂用量、反应温度等反应条件对聚合产物粒径及粒径分布的影响。并用红外光谱对产物结构进行了表征。Micron -size methyl methacrylate -styrene copolymer microspheres were prepared by dispersion copolymerization in the presence of ethanol/water mixture, using polyvinylpyrrolidone （PVP） as dispersant and stabilizer and azobisiobutyronitrile（AIBN） as initiator. The effects of ethanol/water ratio, monomer mass ratio, PVP concentrations and reaction temperature on the particle size and size distribution were studied. The structure of product was characterized by FT - IR.

关 键 词：分散聚合 甲基丙烯酸甲酯 苯乙烯 微球 

分 类 号：TQ630.4[化学工程—精细化工]