摘要
用分散聚合法制备了用于各向异性导电胶膜导电粒子核心的聚苯乙烯微球。研究了加料方式、PVP(聚乙烯吡咯烷酮)用量以及反应介质对微球粒径及分散性的影响．随着PVP用量的增加、醇/水比的降低,微球牲径减小、分布变窄,且一次性加料法所得微球拉径均匀。制备的聚苯乙烯微球粒径为3．0μm。
Monodisperse polystyrene microspheres used as the core of conductive particles in ACF （anisotropic conductive film） were prepared by dispersion polymerization. The effects of styrene feeding manner, PVP （polyvinyl pyrrolidone） concentration and reaction medium on particle size as well its distribution were investigated. It is found that with the increasing of PVP concentration and decreasing of ethanol in ethanol/water medium, the particle size descends while size distribution gets narrower, and adding the styrene at a time also enhances the uniformity of particle diameter. The particle diameter is 3. 0μm.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2006年第11期1848-1850,1858,共4页
Journal of Functional Materials
基金
国家自然科学基金(60318002
10474024)武汉市青年科技晨光基金(20065004116-10)武汉理工大学材料复合新技术国家重点实验室开放基金(WUT2004M08)湖北省自然科学基金(2006ABA091)
关键词
高分子微球
分散聚合
单分散
聚苯乙烯
polymer microsphere
dispersion polymerization
monodisperse
polystyrene
