Controlled/"living" radical polymerization of styrene and methyl methacrylate catalyzed by iron complexes

被引:377
作者
Matyjaszewski, K [1 ]
Wei, ML [1 ]
Xia, JH [1 ]
McDermott, NE [1 ]
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
关键词
D O I
10.1021/ma971010w
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Controlled/"living" radical polymerization of styrene and methyl methacrylate has been achieved by atom transfer radical polymerization (ATRP) catalyzed by iron halide complexes under both homogeneous and heterogeneous conditions. A variety of coordinating ligands have been used including 4,4'-bis(5-nonyl)-2,2'-bipyridine, trialkylamines, triphenylphosphine, trialkylphosphines, and trialkylphosphites. The polymer number-average molecular weight (M-n) increases linearly with monomer conversion and matches the predicted molecular weight. The polymerization rate and molecular weight distribution (M-w/M-n = 1.1-1.5) are affected by the structure of the coordinating ligands and the monomers employed.
引用
收藏
页码:8161 / 8164
页数:4
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