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4707735 
Journal Article 
Tertiary Amine - Enhanced Activity of ATRP Catalysts CuBr/TPMA and CuBr/Me(6)TREN 
Tang, H; Shen, Y; Li, BoG; Radosz, M 
2008 
1 
Macromolecular Rapid Communications
ISSN: 1022-1336
EISSN: 1521-3927 
29 
22 
1834-1838 
WOS:000261544700009 
Tertiary amines were found to remarkably enhance the catalytic activity of ATRP catalysts CuBr/tris[(2-pyridyl)methyl]amine and CuBr/tris[2-(dimethylamino)ethylamine]. These two catalysts alone failed to polymerize AAA, MMA, and styrene at reduced catalyst concentrations. With tertiary amines such as triethylamine both catalysts could mediate fast polymerizations of the three monomers in a controlled manner at as low as 1 mol-% catalyst relative to initiator. A mechanism study showed that tertiary amines reduced copper(II) complexes to active copper(I) complexes. 
activity enhancement; amine effect; atom transfer radical polymerization (ATRP); catalyst; kinetics (polym.)