Cationic β‐Scission of C−H and C−C Bonds for Selective Dimerization and Subsequent Sulfur‐Free RAFT Polymerization of α‐Methylstyrene and Isobutylene
作者:Takayuki Tanimoto、Mineto Uchiyama、Masami Kamigaito
DOI:10.1002/anie.202307791
日期:2023.10.23
dimerizations of α-methylstyrene (αMS) derivatives via β-C−H scission were subsequently used for sulfur-free cationic RAFT polymerization of αMS and isobutylene (IB) via β-C−C scission. Telechelic polymers and block copolymers of αMS and methyl methacrylate were also prepared from bifunctional exo-olefins and mechanistic transformations from cationic to radical RAFT polymerization, respectively,
通过 α-甲基苯乙烯 (αMS) 衍生物通过 β-C−H 断裂选择性阳离子二聚制备的外型烯烃化合物随后用于通过 β-C−C 断裂进行 αMS 和异丁烯 (IB) 的无硫阳离子 RAFT 聚合。遥爪聚合物和αMS与甲基丙烯酸甲酯的嵌段共聚物也分别由双官能外烯烃和从阳离子到自由基RAFT聚合的机械转变制备,