Dinuclear vs. mononuclear complexes: accelerated, metal-dependent ring-opening polymerization of lactide

被引:74
|
作者
Normand, M. [1 ]
Roisnel, T. [2 ]
Carpentier, J. -F. [1 ]
Kirillov, E. [1 ]
机构
[1] Univ Rennes 1, Inst Sci Chim Rennes, Organometall Mat & Catalysis Labs, UMR CNRS 6226, F-35042 Rennes, France
[2] Univ Rennes 1, Inst Sci Chim Rennes, Ctr Diffract 10, UMR CNRS 6226, F-35042 Rennes, France
关键词
HIGHLY-ACTIVE INITIATORS; ALUMINUM COMPLEXES; EPSILON-CAPROLACTONE; COPOLYMERIZATION; LIGANDS; EXPLOITATION; CATALYSTS; AMINO;
D O I
10.1039/c3cc47572g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dinuclear complexes of aluminum and indium with a bis(phenoxyimine) platform have been synthesized and used in the polymerization of lactide. Kinetic studies demonstrate that the dialuminum precursor provides a more favorable reaction pathway in terms of activation free energy than that of directly related monoaluminum systems. No similar trend is observed with the corresponding diindium-monoindium systems, which is attributed to a dissimilar ROP mechanism.
引用
收藏
页码:11692 / 11694
页数:3
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