Remarkable stereocontrol in the polymerization of racemic lactide using aluminum initiators supported by tetradentate aminophenoxide ligands

被引:495
作者
Hormnirun, P [1 ]
Marshall, EL [1 ]
Gibson, VC [1 ]
White, AJP [1 ]
Williams, DJ [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, London SW7 2AY, England
关键词
D O I
10.1021/ja038757o
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new family of aluminum complexes bearing tetradentate bis(aminophenoxide) ligands is reported and shown to initiate the living ring-opening polymerization of rac-lactide. The microstructures of the polylactide products are found to be highly dependent upon the ancillary ligand substituents, ranging from highly isotactic (Pm = 0.79) to very highly heterotactic (Pr = 0.96). Copyright © 2004 American Chemical Society.
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收藏
页码:2688 / 2689
页数:2
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