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A Highly Efficient Iron‐Mediated AGET ATRP of Methyl Methacrylate Using Fe(0) Powder as the Reducing Agent
Author(s) -
Qin Jian,
Cheng Zhenping,
Zhang Lifen,
Zhang Zhengbiao,
Zhu Jian,
Zhu Xiulin
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000737
Subject(s) - dispersity , reducing agent , monomer , methyl methacrylate , molar ratio , polymerization , catalysis , chemistry , polymer chemistry , molar mass , methacrylate , nuclear chemistry , organic chemistry , polymer
A new method, AGET ATRP mediated by an iron(III) catalyst using Fe(0) powder as a reducing agent and MMA as a model monomer, is reported. The polymerizations can be carried out in the absence or presence of a limited amount of air and show the features of a “living”/controlled radical polymerization. MMA conversions of 90.3 and 80.0% can be obtained in 3.5 and 4.0 h in the absence/presence of a limited amount of air, respectively, for the iron‐mediated AGET ATRP with a molar ratio of [MMA] 0 /[EBiB] 0 /[FeCl 3 · 6H 2 O] 0 /[PPh 3 ] 0 /[Fe(0)] 0 = 600:1:0.5:2:0.1 at 90 °C. PMMA with molecular weights of 55 060 and 47 790 g · mol −1 and with molar‐mass dispersity of 1.24 and 1.28, respectively, can be obtained correspondingly.