Advances in Formation, Structure and Properties of SC-PLA by Blending PLLA with PDLA

Xian-zi LUO; Wei HUANG; Ling HONG; Yan GAO; Qun GU; Peng CHEN

doi:10.14028/j.cnki.1003-3726.2015.08.002

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Advances in Formation, Structure and Properties of SC-PLA by Blending PLLA with PDLA

更新时间：2022-09-18

- Advances in Formation, Structure and Properties of SC-PLA by Blending PLLA with PDLA
- Polymer Bulletin Vol. 28, Issue 8, Pages: 8-16(2015)
- 作者机构：
  
  1.上海大学理学院化学系，上海　200444
  2.宁波大学材料科学与化学工程学院，宁波　315211
  3.中国科学院宁波材料技术与工程研究所，中国科学院海洋新材料与应用技术重点实验室，　浙江省海洋材料与防护技术重点实验室，宁波市高分子材料重点实验室，宁波　315201
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2015.08.002
  CLC：
- Published：2015-08，
  
  Received：30 December 2014，
  
  Revised：23 April 2015，
扫描看全文
Xian-zi LUO, Wei HUANG, Ling HONG, Yan GAO, Qun GU, Peng CHEN. Advances in Formation, Structure and Properties of SC-PLA by Blending PLLA with PDLA. [J]. Polymer Bulletin 28(8):8-16(2015)
DOI：

Xian-zi LUO, Wei HUANG, Ling HONG, Yan GAO, Qun GU, Peng CHEN. Advances in Formation, Structure and Properties of SC-PLA by Blending PLLA with PDLA. [J]. Polymer Bulletin 28(8):8-16(2015) DOI： 10.14028/j.cnki.1003-3726.2015.08.002.

摘要

聚乳酸立构复合物(SC-PLA)由左旋聚乳酸(PLLA)和右旋聚乳酸（PDLA)以3

螺旋构象并排堆砌而成，由于分子链间的紧密堆积，SC-PLA具有更高的晶体稳定性、熔点（约比PLLA高50℃ ）以及良好的热、力学、降解等性能。PLLA和PDLA共混是目前制备SC-PLA的一类常用方法，包括溶液共混、熔融共混、微波辐射共混等，SC-PLA在形成过程中会受到PLLA和PDLA的分子量、光学纯度、混合比例等因素影响。本文综述了 PLLA和PDLA通过共混形成SC-PLA的条件和机理，以及SC-PLA的微观结构、性能和应用现状。

Abstract

Stereocomplex polylactide (SC-PLA) can be formed by the packing of poly (L-lactide) and poly (D-lactide) chains side by side in a 3

helical conformation. Thanks to the dense packing and high physical interaction of the chains

the SC-PLA is featured by superior stability and melting point (ca. 50 ℃ higher than that of PLLA) as well as excellent thermal

mechanical and degradation properties. PLLA/PDLA blending is a common method for preparing SC-PLA

including solution blending

melt blending and microwave radiation blending and so on. During the forming process

the SC-PLA can be affected by the molecrlar weight

optical purity

mixing ratio of PLLA and PDLA and other factors. This review addresses the formation conditions and mechanisms

microstructures

properties and potential applications of the SC- PLA formed by blending PLLA with PDLA.

关键词

聚乳酸立构复合物共混结构性能

Keywords

Stereocomplex PLABlendStructureProperties

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Related Institution

Department of Polymer Materials, Shanghai University

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