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Reversible Addition-Fragmentation Transfer Polymerization in the Presence of MMT Immobilized Amphoteric RAFT Agent

✍ Scribed by Bao-Qing Zhang; Cai-Yuan Pan; Chun-Yan Hong; Bin Luan; Peng-Jie Shi

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
200 KB
Volume
27
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: A novel reversible addition‐fragmentation transfer (RAFT) agent, 10‐carboxylic acid‐10‐dithiobenzoate‐decyltrimethylammonium bromide (CDDA), was synthesized and intercalated into montmorillonite (MMT). Successively, the CDDA‐intercalated MMT was used as RAFT agent in the in situ RAFT polymerization for preparation of the polystyrene/MMT nanocomposites. After separation of MMT, the polymers obtained have predictable molecular weight and narrow polydispersity. XRD spectra and TEM images of the nanocomposites demonstrated exfoliated structure. Thermal stability of the composites has been noticeably improved.

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