RAFT自由基聚合技术在表面改性领域的研究进展

Research Progress of RAFT Polymerization on Surface Modification

总结了近十年来可逆加成-断裂链转移(RAFT)自由基聚合技术在材料表面改性领域的研究进展。主要介绍了相关的四大类改性途径:(1)物理涂覆RAFT聚合物;(2)从表面接枝聚合(grafting from),即在表面自由基和溶液中自由RAFT链转移剂存在下进行表面接枝聚合反应;(3)将聚合物接枝到表面(grafting to),就是将末端功能化RAFT聚合物利用末端功能基共价键合到基材表面;(4)表面RAFT链转移剂接枝聚合,是将RAFT链转移剂接枝到表面,然后进行表面聚合反应。对RAFT自由基聚合技术在材料表面改性研究与应用领域发展前景进行了展望。

Development over the past decade in the field of Reversible Addition-Fragmentation Chain Transfer （RAFT） polymerization on surface modification is summarized. This is followed by four parts： （1） Physisorption of polymers synthesized by RAFT process; （2） ＂Grafting from＂ by grafting polymerization in the existence of surface radicals and free RAFT chain transfer agents （CTAs）; （3） ＂Grafting to＂ by covalently tethering polymers synthesized by RAFT process through reaction of functional ends with a surface functional groups; （4） Grafting polymerization by grafting RAFT CTAs on the surface first, and then grafting polymerization can be achieved. The effect of RAFT polymerization on research and application in the field of surface modification is also prospected.