化工进展

• 材料科学与技术 • 上一篇    下一篇

咪唑类离子液体溶解纤维素的研究进展

赵地顺1,李 贺1,付林林1,张 娟1,任培兵1,2   

  1. 1河北科技大学化学与制药工程学院,河北 石家庄 050018;2石家庄焦化集团有限责任公司,河北 石家庄 050031
  • 出版日期:2011-07-05 发布日期:2011-07-05

Progress of dissolution of cellulose with imidazolium ionic liquid

ZHAO Dishun 1,LI He1,FU Linlin1,ZHANG Juan1,REN Peibing 1,2   

  1. 1 School of Chemistry and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,Hebei,China;2 Shijiazhuang Coking &Chemical Group Co. Ltd.,Shijiazhuang 050031,Hebei,China
  • Online:2011-07-05 Published:2011-07-05

摘要:

纤维素作为一种最丰富的可再生自然资源具有很好的开发前景,但由于纤维素多氢键的超分子结构,致使其不溶于普通的有机溶剂,限制了其应用。而离子液体的出现为纤维素的应用提供了一个广阔的平台。本文综述了纤维素在咪唑类离子液体中的溶解性能及可能的溶解机理。总结指出阴离子为ClCH3CHOO(MeO)RPO2的离子液体对纤维素有较好的溶解能力;而烷基咪唑酯盐因一步合成、热稳定性好且溶解工艺简单等优点占有很大优势;咪唑阳离子的结构对溶解性也有很大影响。最后展望了该领域的发展前景。

Abstract:

Cellulose is the most abundant renewable bio-material. Due to its hydrogen-bonded supramolecular structurecellulose is insoluble in water and most common organic liquidswhich limits its application. The emergence of ionic liquids provides a broad platform to the application of cellulose. The recent developments concerning imidazolium ionic liquids as cellulose solvents as well as the dissolution mechanism are reviewed. Ionic liquidscontaining ClCH3CHOO and (MeO)RPO2 anionsappear to be the most effective solvents. A series of alkyl imidazolium ionic liquids containing alkyl phosphate was prepared by a one-pot procedure. Such ionic liquids have good thermal stability and are capable of solubilizing cellulose under mild conditions. The structure of imidazolium cation has an influence on the solubility as well. Future development of imidazolium ionic liquids is discussed.

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn