A simplified theory of crystallisation induced by polymer chain scissions for biodegradable polyesters

被引：53

作者：

Gleadall, Andrew ^{[1
]}

Pan, Jingzhe ^{[1
]}

Atkinson, Helen ^{[1
]}

机构：

[1] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England

来源：

POLYMER DEGRADATION AND STABILITY | 2012年 / 97卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

Biodegradable polymers; Biodegradation; Crystallization; Modelling; Poly-L-lactic acid; IN-VITRO HYDROLYSIS; ENANTIOMERIC POLY(LACTIDE)S; PHASE-CHANGE; L-LACTIDE; PART; DEGRADATION; POLY(L-LACTIDE); MORPHOLOGY; KINETICS; BLENDS;

D O I：

10.1016/j.polymdegradstab.2012.06.023

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 simplified theory for the crystallisation of biodegradable polyesters induced by polymer chain scissions during biodegradation is presented following a theory developed by Han and Pan. The original theory is greatly simplified so that it becomes very straightforward to use and the number of material parameters is significantly reduced. Furthermore it is demonstrated that the spherulite structure widely observed in polymers can be taken into account using the theory. The simplified theory is fitted to the experimental data of poly-L-lactic acids (PLLAs) obtained from literature. It is shown that the simplified theory is equally able to fit the data as the original one. It is also shown that the theory can fit degradation data for PLLAs of different initial degrees of crystallinity with spherulite structures. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1616 / 1620

页数：5

共 22 条

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