含胺基水溶性单体的乳液共聚合研究  

The Study of Emulsion Copolymerization for Amine-containing Water-soluble Monomer

作　　者：雒春辉[1] 杨晋[1] 张正国[1] 

机构地区：[1]北方民族大学化学与化学工程学院,宁夏银川750021

出　　处：《广州化工》2014年第10期69-70,76,共3页GuangZhou Chemical Industry

基　　金：北方民族大学2013年引进人才启动项目;北方民族大学2014年基金(2014XYZ01)

摘　　要：制备了含水溶性单体甲基丙烯酸二甲氨基乙酯(DM)的三元共聚物乳液。研究了聚合工艺、DM含量对聚合的影响。结果表明少量DM参与共聚不但不会影响乳液的稳定性,还可提高聚合反应速率;但是,当DM含量>5%时,随着DM含量的增加,乳胶粒聚并加剧,稳定性降低。当DM含量超过10%时,三元共聚物可以在酸性介质中溶解。The terpolymer latex of styrene （St） - butylacrylate （BA） - dimethylaminoethyl methacrylate （ DM ） was prepared. The effects of feeding way and DM contents on emulsion copolymerization were investigated. It showed that a content of 2wt% DM led to the acceleration of polymerization rate, while emulsion stability was not affected obviously. When the content of DM increased more than 5 % , the coagulation between latex particles became seriously and emulsions were getting unstable. The copolymers became soluble in acid water when DM contents were more than 10wt%.

关 键 词：乳液聚合 甲基丙烯酸二甲氨基乙酯 酸溶性 

分 类 号：TQ316.33[化学工程—高聚物工业]