摘要
以丁苯胶乳为种子,采用传统的种子乳液聚合方法制备了核壳型聚氯乙烯(PVC)抗冲击改性剂MBS。对不同引发体系对接枝率和接枝效率、乳液粒径及结构、接枝共聚物组成的影响等进行了研究。结果表明,油溶性的引发剂偶氮二异丁腈和过氧化苯甲酰不适宜作为引发体系;水溶性引发剂过硫酸铵和过氧化苯甲酰-亚铁组成的氧化还原引发体系引发的乳液则较稳定。
Core-shell PVC impact modifier MBS was synthesized by the traditional PBS seed emulsion polymerization. The effect of different initiators on the grafting degree and efficiency, grain diameter and structure, composition of polymer were investigated. The results showed that AIBN and BPO couldn＇t be used as initiator, APS and BPO-Fe 2 ＋ redox initiator were better.
出处
《塑料工业》
CAS
CSCD
北大核心
2011年第4期70-73,共4页
China Plastics Industry
关键词
氧化还原引发体系
丁苯橡胶乳
接枝聚合
Redox Initiator
Poly （butadiene-styrene） Latices
Grafting Polymerization
