Poly(lactic acid) crystallization

被引：1359

作者：

Saeidlou, Sajjad ^{[1
]}

Huneault, Michel A. ^{[1
]}

Li, Hongbo ^{[2
]}

Park, Chul B. ^{[3
]}

机构：

[1] Univ Sherbrooke, Fac Engn, Dept Chem & Biotechnol Engn, Sherbrooke, PQ J1K 2R1, Canada

[2] Natl Res Council Canada, Boucherville, PQ J4B 6Y4, Canada

[3] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada

来源：

PROGRESS IN POLYMER SCIENCE | 2012年 / 37卷 / 12期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Poly( lactic acid); Polylactide; PLA; Crystallization; Kinetics; Review; LOW-MOLECULAR-WEIGHT; POLY(LACTIDE)/POLY(ETHYLENE GLYCOL) BLENDS; ISOTHERMAL MELT-CRYSTALLIZATION; SOLID-STATE STRUCTURE; POLY(L-LACTIC ACID); STEREOCOMPLEX FORMATION; THERMAL-PROPERTIES; SPHERULITE GROWTH; NONISOTHERMAL CRYSTALLIZATION; CRYSTAL-STRUCTURE;

D O I：

10.1016/j.progpolymsci.2012.07.005

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(lactic acid) is a biobased and compostable thermoplastic polyester that has rapidly evolved into a competitive commodity material over the last decade. One key bottleneck in extending the use of PLA is the control of its crystallinity. Understanding the crystallization behavior is particularly crucial to control PLA's degradation rate, thermal resistance as well as optical, mechanical and barrier properties. PLA crystallization has also been a particularly rich topic from a fundamental point of view because of the existence of the two enantiomeric forms of lactic acid that can be used to control the crystallization rate but also to form high melting point stereocomplex structures. This article presents an overview of the current understanding on the fundamentals of PLA crystallization in quiescent conditions and on the practical means to enhance its rate. Data from the abundant literature on PLA crystallization were compiled and analyzed to provide comprehensive relationships between crystallization kinetics and the main molecular structure characteristics of PIA. In addition, the most promising efforts in enhancing PLA crystallization kinetics through plasticization or heterogeneous nucleation were reviewed. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1657 / 1677

页数：21

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