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A Highly Active Iron‐Based Catalyst System for the AGET ATRP of Styrene
Author(s) -
Zhang Lifen,
Cheng Zhenping,
Lü Yueting,
Zhu Xiulin
Publication year - 2009
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.200800695
Subject(s) - styrene , ascorbic acid , catalysis , polymer chemistry , polymerization , monomer , atom transfer radical polymerization , polymer , benzene , amine gas treating , copolymer , materials science , radical polymerization , chemistry , organic chemistry , food science
The atom transfer radical polymerization of styrene using activators generated by electron transfer (AGET ATRP) has been carried out in bulk in a limited amount of air at 110 °C, using 1,3,5‐(2′‐bromo‐2′‐methylpropionato)benzene (BMPB) as an initiator and FeCl 3 · 6H 2 O/tris(3,6‐dioxaheptyl) amine (TDA‐1)/ascorbic acid (VC) as a novel Fe III ‐mediated catalyst system. The results of the polymerizations demonstrate the features of ‘living’/controlled free‐radical polymerization, such as the number‐average molecular weights being close to their corresponding theoretical values and increasing linearly with monomer conversion, and narrow molecular weight distributions ( $\overline M _{\rm w} /\overline M _{\rm n}$ = 1.18–1.26). The end functionality of the obtained polymers was confirmed by 1 H and 13 C NMR spectra as well as a chain‐extension reaction.