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Reversible Addition‐Fragmentation Transfer Polymerization in the Presence of MMT Immobilized Amphoteric RAFT Agent
Author(s) -
Zhang BaoQing,
Pan CaiYuan,
Hong ChunYan,
Luan Bin,
Shi PengJie
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.200500674
Subject(s) - raft , chain transfer , reversible addition−fragmentation chain transfer polymerization , dispersity , polymer chemistry , polymerization , montmorillonite , materials science , polystyrene , polymer , thermal stability , bromide , chemical engineering , radical polymerization , chemistry , organic chemistry , composite material , engineering
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.