SYNTHESIS OF POLY(L-LACTIDE)-BLOCK-POLYISOBUTYLENE-BLOCK-POLY(L-LACTIDE), A NEW BIODEGRADABLE THERMOPLASTIC ELASTOMER

被引：58

作者：

SIPOS, L

ZSUGA, M

DEAK, G

机构：

[1] Institute of Applied Chemistry, Kossuth L. University, Debrecen

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1995年 / 16卷 / 12期

关键词：

D O I：

10.1002/marc.1995.030161209

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 anionic ring-opening polymerization of L-lactide was initiated by dipotassium-polyisobutylene-alcoholate telechelic polymer to yield poly(L-lactide)-block-polyisobutylene-block-poly(L-lactide) triblock copolymer, a partially biodegradable thermoplastic elastomer. The pure triblock copolymer was obtained by gradient column chromatography on silica gel. The molar mass and molar mass distribution of the block copolymer was ascertained by SEC and quantitative H-1 NMR spectroscopy. It showed two glass transitions and microphase separation.

引用

页码：935 / 940

页数：6

共 10 条

[1]

DIETZEL R, 1925, BERICHTE, V58, P1313

[2] BLOCK AND GRAFT-COPOLYMERS OF PIVALOLACTONE .4. TRIBLOCK AND BLOCK-GRAFT COPOLYMERS FROM PIVALOLACTONE AND ISOPRENE [J].