中国塑料 ›› 2011, Vol. 25 ›› Issue (10): 34-37 .DOI: 10.19491/j.issn.1001-9278.2011.10.007

• 材料与性能 • 上一篇    下一篇

L-丙交酯/ε-己内酯共聚物的合成与性能研究

马聪鹤 柴云 张普玉   

  1. 河南省河南大学金明校区化学化工学院 河南大学化学化工学院
  • 收稿日期:2011-07-22 修回日期:2011-09-02 出版日期:2011-10-26 发布日期:2011-10-26

Study on Synthesis and Properties of L-Lactide and ε-Caprolactone Copolymers

MA Conghe CHAI Yun ZHANG Puyu   

  • Received:2011-07-22 Revised:2011-09-02 Online:2011-10-26 Published:2011-10-26
  • Contact: ZHANG Puyu

摘要: 以辛酸亚锡为催化剂、乙二醇为引发剂、L-丙交酯和ε-己内酯为反应单体,采用开环聚合的方法合成一系列单体配比不同的共聚物PCLA。采用红外分析、核磁共振分析表征了PCLA的结构,采用差示扫描量热仪和凝胶渗透色谱仪分析了PCLA的热性能和相对分子质量,通过测量接触角观察了PCLA的亲水性。结果表明,引发剂乙二醇的使用以及改变单体配比可以调节PCLA的分子结构、相对分子质量和热性能,对其亲水性影响不大。

关键词: L-丙交酯, ε-己内酯, 开环聚合, 共聚物, 性能

Abstract: L-Lactide/ε-caprolactone copolymers with varying compositions and molecular weight were synthesized via ring-opening polymerization using Sn(Ⅱ)octoate as a catalyst and ethylene glycol as an initiator. The structure of the copolymers was characterized using Fourier transform infrared spectrometer, nuclear magnetic resonance spectra, and gel permeation chromatography, the thermal properties using differential scanning calorimeter, and the hydrophilicity using contact angle. Changing the monomer molar ratios and using ethylene glycol as an initiator in feed could adjust the chemical compositions,molecular weight and thermal properties of the copolymers, however, had little effect on the hydrophilicity.

Key words: L-lactide, ε-caprolactone, ring-opening polymerization, copolymer, property