蒸馏沉淀聚合过程中交联度对单分散聚合物微球形成的影响  

EFFECT OF CROSSLINKING DEGREES ON THE PREPARATION OF MONODISPERSE POLYMER MICROSPHERES BY DISTILLATION PRECIPITATION POLYMERIZATION

作　　者：齐东来[1] 杨新林[1] 黄文强[1] 

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

出　　处：《离子交换与吸附》2005年第6期481-486,共6页Ion Exchange and Adsorption

基　　金：国家自然科学基金(20274018)

摘　　要：以苯乙烯为单体、二乙烯基苯(DVB)为交联剂,过氧化二苯甲酰(BPO)为引发剂研究了蒸馏沉淀聚合法制备聚合物微球过程中交联单体二乙烯苯的用量对单分散聚合物微球成球的影响。结果表明,增加二乙烯基苯的比例,即提高交联度有利于形成单分散的聚合物微球。Commercial divinylbenzene （DVB）, used as crosslinker, was copolymerized with styrene（St） by distillation-precipitation polymerization with benzyl peroxide （BPO） as initiator in neat acetonitrile. The effect of DVB fraction on the formation of monodisperse polymer microspheres during the copolymerization was investigated. The results showed that increasing crosslinking degree is favorable to prepare monodisperse polymer microspheres.

关 键 词：聚合物微球 蒸馏沉淀聚合 单分散聚合物微球的制备 

分 类 号：TQ425[化学工程]