Hyperbranched poly(4-acetylstyrene) by ruthenium-catalyzed step-growth polymerization of 4-acetylstyrene

被引:34
作者
Lu, P [1 ]
Paulasaari, JK [1 ]
Weber, WP [1 ]
机构
[1] UNIV SO CALIF,DEPT CHEM,KB & DP LOKER HYDROCARBON RES INST,LOS ANGELES,CA 90089
关键词
D O I
10.1021/ma9609691
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Treatment of 4-acetylstyrene (an AB(2) monomer) with dihydridocarbonyltris(triphenylphosphine)ruthenium leads to hyperbranched poly(4-acetylstyrene) whose structure has been determined by H-1 and C-13 NMR spectroscopy. The hyperbranched material has been characterized by GPC, LR, UV, TGA, DSC, and elemental analysis. Polymerization occurs by Ru-catalyzed addition of C-H bonds which are adjacent to the activating acetyl group across the C-C double bond of the vinyl group in both a Markovnikov and an anti-Markovnikov manner.
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页码:8583 / 8586
页数:4
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