化工学报2011，Vol.62Issue(7)：2055-2060,6.DOI:10.3969/j.issn.0438-1157.2011.07.040
壳聚糖/聚己内酯接枝共聚物的均相合成与表征
Homogeneous synthesis and characterization of graft copolymer of chitosan/polycaprolactone
韩小进 1朱庆松 2程春祖 1武长城1
作者信息
- 1. 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,北京,100025
- 2. 天津工业大学改性与功能纤维天津市重点实验室,天津,300160
- 折叠
摘要
Abstract
The homogeneous graft copolymerization of ε-caprolactone (ε-CL) onto chitosan (CS) in ionic liquid 1-butyl-3-methylimidazolium acetate ( [BMIM] Ac) was studied. The effect of various reaction parameters on grafting percentage was evaluated and the obtained graft copolymer was characterized by FTIR,1H NMR, TGA and XRD. The results showed that graft copolymerization occurred with high reaction efficiency under the homogeneous conditions, and the grafting percentage of 250％ was achieved at temperature 105℃, time 8 h, catalyst concentration 0. 1％ (mass) of ε-CL and molar ratio ε-CL to CS 20. The thermal stability of graft copolymer decreased as compared with CS, because of a variety of crystal structures of CS occurring with the grafting of ε-CL onto CS.关键词
壳聚糖/ε-己内酯/均相/离子液体/接枝共聚Key words
chitosan/ ε-caprolactone/ homogeneous/ ionic liquid/ graft copolymerization分类
化学化工引用本文复制引用
韩小进,朱庆松,程春祖,武长城..壳聚糖/聚己内酯接枝共聚物的均相合成与表征[J].化工学报,2011,62(7):2055-2060,6.
