Synthesis and Characterization of Novel Chain-Linked Biodegradable Polymers

被引：9

作者：

Gupta, A. P. ^{[1
]}

Kumar, Vimal ^{[1
]}

机构：

[1] Univ Delhi, Fac Technol, Delhi Coll Engn, Dept Appl Chem & Polymer Technol, New Delhi, India

来源：

DESIGNED MONOMERS AND POLYMERS | 2010年 / 13卷 / 01期

关键词：

Biodegradadation; lactic acid; chain-linked polymer; dynamic mechanical analysis; LACTIC-ACID; SEGMENTED POLYURETHANES; POLYMERIZATION;

D O I：

10.1163/138577209X12591392377810

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 synthesis of high-molecular-weight lactic-acid-based polymers by chain-linked polymerization was investigated. A lactic-acid-based hydroxyl-terminated telechelic pre-polymer was synthesized and then it was chain-linked with methylene diphenyldiisocyanate (MDI). All polymerizations were carried out in the melt, using tin octoate as catalyst. The products were characterized by dynamic mechanical analyzer, Fourier transform infrared spectroscopy, thermogravimetric analysis and viscometry. With the increase in diisocyanate concentration, increases in the viscosity, storage modulus and glass transition temperature were observed. (c) Koninklijke Brill NV, Leiden, 2010

引用

页码：65 / 72

页数：8