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

详细信息    查看全文

• 作者：Kristin Schr枚der ; Robert T. Mathers ; Johannes Buback ; Dominik Konkolewicz ; Andrew J. D. Magenau ; Krzysztof Matyjaszewski
• 刊名：ACS Macro Letters
• 出版年：2012
• 出版时间：August 21, 2012
• 年：2012
• 卷：1
• 期：8
• 页码：1037-1040
• 全文大小：230K
• 年卷期：v.1,no.8(August 21, 2012)
• ISSN：2161-1653

文摘

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.