微波合成均分散高分子微球及其机理  

Preparation of Monodispersed Macromolecule Microspheres by Microwave Irradiation and Research on the Mechanism of Its Formation

作　　者：翟慕衡[1] 张文敏[1] 盛恩宏[1] 傅中[1] 张峰 

机构地区：[1]安徽师范大学化学系,芜湖241000

出　　处：《物理化学学报》1999年第8期747-751,共5页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金;安徽省自然科学基金; 安徽师大青年基金

摘　　要：Polymerization of styrene and methylmethacrylate was conducted in the presence of seeds and microwave irradiation. The particles were characterized by laser light scattering and transmission electron microscopy. Making comparison between two kinds of microsphere formation processes, we have obtained some information on the mechanism of the particle formation. For polystyrene the process was mainly conducted on the seeds. However, for polymethylmacrylate at the lower concentration range, the process was mainly conducted in the solution, in contrary, at higher concentration, it occured mainly on the seeds.Polymerization of styrene and methylmethacrylate was conducted in the presence of seeds and microwave irradiation. The particles were characterized by laser light scattering and transmission electron microscopy. Making comparison between two kinds of microsphere formation processes, we have obtained some information on the mechanism of the particle formation. For polystyrene the process was mainly conducted on the seeds. However, for polymethylmacrylate at the lower concentration range, the process was mainly conducted in the solution, in contrary, at higher concentration, it occured mainly on the seeds.

关 键 词：微波 无皂乳液聚合 聚苯乙烯 微球 PMMA 微米级 

分 类 号：O632.13[理学—高分子化学] O632.52[理学—化学]