硅油为致孔剂合成的St-DVB大孔共聚物  

Synthesis of Macroporous Styrene-Divinylbenzene Copolymers Using Silicon Oil as the Coporogen with Toluene

作　　者：范云鸽[1] 王蓓蕾[1] 史作清[1] 

机构地区：[1]功能高分子材料教育部重点实验室南开大学高分子化学研究所,天津300071

出　　处：《高分子材料科学与工程》2008年第2期43-46,共4页Polymer Materials Science & Engineering

基　　金：天津市自然科学基金资助项目(05YFJMJC00400)

摘　　要：采用硅油与甲苯为混合致孔剂,水相悬浮聚合制备了一系列大孔交联苯乙烯-二乙烯苯树脂。通过改变交联剂DVB用量和致孔剂硅油与甲苯的配比、用量等,研究了所合成的大孔St-DVB共聚物的堆密度、力学强度、比表面积、表面形态及吸附性能。结果表明,硅油与甲苯以一定比例混合作致孔剂时,可得到了一类具特殊结构的小球堆积型(10μm^15μm)大孔共聚物。Styrene-divinylbenzene （St-DVB） copolymers were synthesized by suspension polymerization in the presence of silicon oil and toluene as diluents for the monomers （porogens）. The influence of silicon oil/toluene ratio and dilution degree on the formation of porous structure of the copolymers were investigated by surface area, pore volume, bulk density, and morphology of macroporous polymers It was found that more than 13 % silicon oil in the porogen mixture always leads to macroporous polymer with microsphere （10 μm-15μm） aggregation. These macroporous resins exhibited low BET Surface areas （〈50 m^2/g, simple BET method）.

关 键 词：硅油致孔剂 大孔苯乙烯-二乙烯苯树脂 悬浮聚合 小球堆积结构 

分 类 号：TB383[一般工业技术—材料科学与工程]