Substituted Tris(2-pyridylmethyl)amine Ligands for Highly Active ATRP Catalysts

被引:67
|
作者
Schroeder, Kristin [1 ]
Mathers, Robert T. [1 ]
Buback, Johannes [1 ]
Konkolewicz, Dominik [1 ]
Magenau, Andrew J. D. [1 ]
Matyjaszewski, Krzysztof [1 ]
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
基金
美国安德鲁·梅隆基金会; 美国国家科学基金会;
关键词
TRANSFER RADICAL POLYMERIZATION; ACTIVATION RATE CONSTANTS; ELECTRON-TRANSFER; EQUILIBRIUM; COMPLEXES; REACTIVITY; ACRYLATES; COPPER(I); DESIGN;
D O I
10.1021/mz3003787
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The synthesis and application of a very active catalyst for copper-catalyzed atom transfer radical polymerizations (ATRP) with tris([(4-methoxy-2,5-dimethyl)-2-pyridyl] methyl)amine (TPMA*) ligand is reported. Catalysts with TPMA* ligands are approximately 3 orders of magnitude more active than those with tris(2-pyridylmethyl)amine (TPMA). Catalyst activity was evaluated by cyclic voltammetry, stopped-flow, and ATRP kinetics. Catalysts with TPMA* ligands perform better than those with TPMA ligands, especially at low catalyst concentrations.
引用
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页码:1037 / 1040
页数:4
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