文献类型：期刊文献

英文题名：Preparation and characterization of micron-sized polystyrene/polysiloxane core/shell particles

作者：Lu, Xin[1]; Xin, Zhong[1]

机构：[1]E China Univ Sci & Technol, Coll Chem Engn, UNILAB Chem React Engn, Lab Organ Funct Mat, Shanghai 200237, Peoples R China

年份：2006

卷号：284

期号：9

起止页码：1062

外文期刊名：COLLOID AND POLYMER SCIENCE

收录：;EI(收录号：20062910014671);WOS:【SCI-EXPANDED(收录号:WOS:000238765300015)】；

语种：英文

外文关键词：polystyrene; polysiloxane; core/shell particles

摘要：A procedure has been developed to coat micron-sized polystyrene (PS) spheres with a smooth layer of polysiloxane by a sol-gel process of methyl trimethoxylsilane (MTMS) without using silane coupling agents. The thickness of the shells can be easily varied with different polystyrene seeds and methyl trimethoxysilane feed ratio. When we used PS particles with diameters of 2.09 mu m prepared by conventional dispersion polymerization as seeds, the thickness of the polysiloxane shells can be varied from 0.11 to 0.21 mu m. The particle size, size distribution, thermal decomposition, and solvent resistance were investigated by scanning electron microscope (SEM), transmission electron microscope (TEM), size analyzer, and TG, respectively.