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Synthesis of Multiblock Polymer Containing Narrow Polydispersity Blocks

✍ Scribed by Jian Hong; Qi Wang; Zhiqiang Fan

Book ID
102490593
Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
111 KB
Volume
27
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

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.

magnified imageIntegrated process of ring‐opening and RAFT polymerizations involving cyclic trithiocarbonates.

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