Discrete yttrium(III) complexes as lactide polymerization catalysts

被引:139
作者
Chamberlain, BM [1 ]
Sun, YP [1 ]
Hagadorn, JR [1 ]
Hemmesch, EW [1 ]
Young, VG [1 ]
Pink, R [1 ]
Hillmyer, MA [1 ]
Tolman, WB [1 ]
机构
[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
关键词
D O I
10.1021/ma990005k
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A set of novel yttrium complexes that display unprecedented coordination geometries for the ligands S-H3LMe, R-H3LiPr, and H3LMe is developed. These complexes are promising catalysts for the ring-opening polymerization of lactide. The demonstration of readily manipulated ligand effects on polymerization reactivity in these discrete, well-characterized complexes represents an important step in the development of highly selective lanthanide catalysts for the controlled synthesis of polylactide acid and other polyesters.
引用
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页码:2400 / 2402
页数:3
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