Homogeneous atom transfer radical polymerization of methyl methacrylate at ambient temperature in aqueous ethanol

被引:33
作者
Jewrajka, SK [1 ]
Chatterjee, U [1 ]
Mandal, BM [1 ]
机构
[1] Indian Assoc Cultivat Sci, Polymer Sci Unit, Kolkata 700032, W Bengal, India
关键词
D O I
10.1021/ma0497613
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 problems encountered with Atom Transfer Radical Polymerization (ATRP) conducted in media containing water while studying ATRP of acrylamide in aqueous glycerol were discussed. It was shown that the R-Br+CuBr/L initiator catalyst system gave a higher rate of polymerization than the R-Cl+CuCl/L with MMA while the opposite was true for acrylamide. It was found that the equilibrium constant for the reversible deactivation K=ka/kda was greater for a Br based system in the ATRP of MMA, but the reverse was true in the ATRP of acrylamide. The analysis shows that ATRP of MMA was facile and well controlled at ambient temperature in the environment friendly solvent, aqueous ethanol, using the CuX/o-phen catalyst system.
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收藏
页码:4325 / 4328
页数:4
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