A Bifunctional Diblock Copolymer from Consecutive RAFT Polymerizations and its Functionalization

作者：Jiang, Xiaowu; Du, Xiangyang; Zhang, Lifen; Cheng, Zhenping^*

来源：Macromolecular Chemistry and Physics, 2013, 214(6): 654-663.

DOI：10.1002/macp.201200609

• diblock copolymers
• polymer brushes
• ATRP
• RAFT
• membranes
• micelles

Poly(glycidyl methacrylate)-block-poly(4-vinylbenzyl chloride), or P(GMA)-b-P(VBC), is synthesized via consecutive reversible addition-fragmentation chain transfer (RAFT) polymerizations. Subsequent functionalization via atom-transfer radical polymerization (ATRP) of methyl methacrylate (MMA) and styrene (St) gives rise to two functional brush-type diblock graft copolymers, P(GMA)-b-(P(VBC)-g-P(MMA)) and P(GMA)-b-(P(VBC)-g-PS). These graft copolymers are further functionalized by a ring-opening reaction of the P(GMA) block with diethylamine (DEA) to produce two diblock copolymer brushes, P(DEAHPMA)-b-(P(VBC)-g-P(MMA) and P(DEAHPMA)-b-(P(VBC)-g-PS (Brush-2A). Single molecules of the copolymers are imaged by atomic force microscopy (AFM). Brush-2A can be cast into porous membranes with well-defined micropores from tetrahydrofuran (THF) solutions by phase inversion in an aqueous medium.

• 出版日期2013-3-25
• 单位苏州大学