Stereoselective controlled polymerization of DL-lactide with [Ti(trisphenolate)O-i-Pr]2 initiators

被引：74

作者：

Russell, SK

Gamble, CL

Gibbins, KJ

Juhl, KCS

Mitchell, WS

Tumas, AJ

Hofmeister, GE ^{[1
]}

机构：

[1] Carleton Coll, Dept Chem, Northfield, MN 55057 USA

[2] Gustavus Adolphus Coll, Dept Chem, St Peter, MN 56083 USA

来源：

MACROMOLECULES | 2005年 / 38卷 / 24期

关键词：

D O I：

10.1021/ma051811w

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 potential of stereoselective controlled polymerization of DL-Lactide with [Ti(trisphenolate)O-i-Pr] 2 initiators was analyzed. The anhydrous solvent used in polymerization were passed through a plug of alumina immediately prior to use. The extent of conversion the residue and integrating the methine resonances of the polymer relative to the methine resonances of the polymer. Results show a first-order dependence on compound, consistent with a coordination-insertion mechanism, and titanium isopropoxide ligand is transferred to the end of growing polymer chain during initiation.

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收藏

页码：10336 / 10340

页数：5

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