Homogeneous graft copolymerization of chitosan in ionic liquid

韩小进

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Homogeneous graft copolymerization of chitosan in ionic liquid

更新时间：2025-12-10

- Homogeneous graft copolymerization of chitosan in ionic liquid
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  1. 天津工业大学改性与功能纤维天津市重点实验室
  2. 中国纺织科学研究院生物源纤维制造技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2010，
  
  Published：05 November 2010
- 稿件说明：
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韩小进. Homogeneous graft copolymerization of chitosan in ionic liquid[J]. CIESC Journal, 2010, (11).
DOI：

韩小进. Homogeneous graft copolymerization of chitosan in ionic liquid[J]. CIESC Journal, 2010, (11). DOI：

摘要

以离子液体1-丁基-3-甲基咪唑氯盐（［BMIM］Cl）为反应介质，壳聚糖（CS）与L-丙交酯(L-LA)发生均相接枝共聚反应，得到了壳聚糖与L-丙交酯的接枝共聚物。考察了单体和催化剂的用量、反应的温度和时间对接枝率的影响规律。并利用红外光谱、核磁共振氢谱、热重分析等对接枝共聚物进行了表征，证实了L-丙交酯在壳聚糖分子链上发生了接枝共聚。实验结果表明，在［BMIM］Cl中进行的L-丙交酯与壳聚糖的均相接枝共聚反应效率高于非均相反应。

Abstract

The homogeneous graft copolymerization of L-lactide(L-LA) onto chitosan (CS) using ionic liquid 1-butyl-3-methylimidazolium chloride (［BMIM］Cl) as reaction medium was studied. The effects of various reaction parameters on grafting percentage

such as monomer content

catalyst concentration

reaction time and reaction temperature were investigated. The obtained chitosan grafted poly(L-lactide) (CL) was characterized with FTIR

1H NMR and TG. The results showed that the reaction efficiency of homogeneous graft copolymerization of L-LA and CS in ionic liquid was higher than that of non-homogeneous graft copolymerization.

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