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Synthesis of Multiblock Polymer Containing Narrow Polydispersity Blocks
Author(s) -
Hong Jian,
Wang Qi,
Fan Zhiqiang
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500678
Subject(s) - raft , chain transfer , moiety , dispersity , copolymer , reversible addition−fragmentation chain transfer polymerization , polymer chemistry , polystyrene , materials science , polymer , polymerization , acrylate , chemistry , radical polymerization , organic chemistry , composite material
Summary: We have developed a new strategy to prepare multiblock polymers and copolymers via one‐ or two‐step polymerization using a polymerizable cyclic trithiocarbonate (CTTC), 4,7‐diphenyl‐[1,3]dithiepane‐2‐thione. CTTC undergoes ring‐opening process to incorporate a trithiocarbonate moiety. The trithiocarbonate moiety in turn, functions as a reversible addition fragmentation chain transfer (RAFT) agent. Through this mechanism, multiblock polystyrenes and polystyrene‐ block ‐ poly(butyl acrylate) copolymers containing various narrow polydispersity blocks can be prepared.Integrated process of ring‐opening and RAFT polymerizations involving cyclic trithiocarbonates.