阳离子聚合
聚合
高分子化学
苯乙烯
链式转移
乳液聚合
化学
单体
水溶液
链式传播
自由基聚合
共聚物
有机化学
聚合物
作者
Jinghan Zhang,Yibo Wu,Xiaoning Li,Dan Yang,Min Zhang,Hao Wang,Yuwei Shang,Ping Ren,Xin Mu,Shuxin Li,Wenli Guo
标识
DOI:10.1002/macp.201800419
摘要
Abstract Styrene cationic polymerizations initiated by cumyl alcohol (CumOH)/B(C 6 F 5 ) 3 are systematically studied in aqueous suspension and emulsion. Theoretical calculations and experimental research suggest that CumOH/B(C 6 F 5 ) 3 has higher initiating activity than H 2 O/B(C 6 F 5 ) 3 . During emulsion polymerization of styrene, molecular weight and polymerization rate decrease with the addition of surfactants. These polymerization processes share the same features. Specifically, all elemental reactions (initiation, propagation, and termination) in aqueous media occur at the droplet interface. End structure analysis indicates that chain transfer reactions to water and a ‐proton elimination and chain transfer reactions to monomer occur. The possible mechanism for the styrene cationic polymerization in aqueous media is demonstrated.
科研通智能强力驱动
Strongly Powered by AbleSci AI