Osmium-mediated radical polymerization

被引:84
作者
Braunecker, WA [1 ]
Itami, Y [1 ]
Matyjaszewski, K [1 ]
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
关键词
D O I
10.1021/ma051877r
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 ability of Osmium to mediate atom transfer radical polymerization (ATRP)) and stable free radical polymerization (SFRP) and to probe the potential interplay of these two radical polymerization mechanisms on a single metal catalysts was investigated. The polymers generated in reactions of bulk monomer at 100°C typically possessed molecular weights close to theoretical values based on conversion and were observed to follow first-order linear kinetics. Such observations indicated that the Os complex had mediated a controlled polymerization. The results show that polymerization could be mediated under directed ATRP conditions in DMF, but the solvent had an adverse effect on catalyst performance.
引用
收藏
页码:9402 / 9404
页数:3
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