This study was directed to a novel metal-free initiating system for living cationic polymerization via degenerative chain transfer mechanism, in which a covalent C-S or C-OP(O) bond is reversibly activated by the growing carbocationic species without any metal catalysts (Scheme 1). Thiocarbonylthio compounds have been known as effective chain transfer agents to induce living radical polymerization via reversible addition-fragmentation chain transfer (RAFT) mechanism which is one of the degenerative chain transfer mechanism. Here, we proposed degenerative chain transfer cationic polymerization using not only thiocarbonylthio compounds but also thioethers and phosphorous compounds as chain transfer agents for controlling cationic polymerization.

Novel living cationic polymerization via degenerative chain-transfer mechanism

252nd National Meeting (2016)

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