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›› 2013, Vol. 30 ›› Issue (2): 194-199.DOI: 10.7523/j.issn.1002-1175.2013.02.008

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Cornstalk dissolution and regeneration in two imidazolium-based ionic liquids

LI Shan1, LI Zeng-Xi1,2, ZHU Min-Li1, LV Xing-Mei2   

  1. 1. Graduate University, Chinese Academy of Sciences, Beijing 100049, China;
    2. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2012-01-11 Revised:2012-03-31 Online:2013-03-15

Abstract:

Dissolution of cornstalk in 1-butyl-3-methylimidazolium chloride (BmimCl) and 1-ethyl-3-methylimidazolium acetate (EmimOAc) was studied. Chemical structure and crystalline form of cornstalk before and after dissolution were analyzed by means of FT-IR, TGA, SEM, and XRD. The results show that the crystallinity and thermostability of the regenerated cellulose-rich material slightly decreased after dissolution. Cornstalk directly dissolved in ionic liquids, and no derivatization reaction occurred.

Key words: cornstalk, ionic liquid, dissolution, regeneration

CLC Number: