MICROSTRUCTURE ANALYSIS OF POLY(LACTIC ACID) OBTAINED BY LITHIUM TERT-BUTOXIDE AS INITIATOR

被引：191

作者：

KASPERCZYK, JE

机构：

[1] Institute of Polymer Chemistry, Polish Academy of Sciences

来源：

MACROMOLECULES | 1995年 / 28卷 / 11期

关键词：

D O I：

10.1021/ma00115a028

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In the polymerization of racemic L,D-lactide by lithium tert-butoxide as an initiator polyesters with disyndiotactic segments in the polymer chain are obtained. The observation evidences the stereoselectivity leading to an alternating addition of enantiomers to the growing chain during polymerization. The analysis of the carbonyl and methine region in the C-13 NMR spectrum of obtained poly(lactic acid) allowed the calculation of the probability coefficient p(2) determining the amount of disyndiotactic structures in the polymer chain.

引用

页码：3937 / 3939

页数：3