木筏
可逆加成-断裂链转移聚合
链式转移
聚合
化学
自由基聚合
氧化还原
高分子化学
光化学
有机化学
聚合物
作者
Francesca Lorandi,Marco Fantin,Krzysztof Matyjaszewski
标识
DOI:10.1002/9783527821358.ch13
摘要
Redox chemical and electrochemical approaches to initiating and externally controlling reversible addition–fragmentation chain transfer (RAFT) polymerization enable the preparation of well-defined and complex polymeric architectures under mild conditions. Redox pairs and electrochemical currents/potentials were used to generate radicals at room temperature, replacing conventional thermal radical initiators and minimizing the generation of new chains during polymerization. Moreover, redox-initiated RAFT polymerizations, including Fenton-RAFT polymerizations, could be coupled with enzymatic degassing. Alternatively, transition metal complexes were used to activate RAFT agents, eliminating the need of radical initiators. Electrochemically mediated RAFT ( e RAFT) polymerization was developed by using electrochemical stimuli to activate RAFT agents and control the polymerization.
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