Precipitation of chitosan from ionic liquid solution by the compressed CO2 anti-solvent method

Xiaofu Sun; Zhimin Xue; Tiancheng Mu

doi:10.1039/C3GC42166J

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Precipitation of chitosan from ionic liquid solution by the compressed CO₂ anti-solvent method†

Xiaofu Sun,^a Zhimin Xue^a and Tiancheng Mu*^a

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* Corresponding authors

^a Department of Chemistry, Renmin University of China, Beijing 100872, China
E-mail: tcmu@chem.ruc.edu.cn
Tel: +8610-62514925

Abstract

The utilization of compressed CO₂ as an anti-solvent to precipitate chitosan from acetate-based ionic liquid (IL) solution is presented. Volume expansion and solvatochromic behavior of IL are investigated to explain the precipitation mechanism. The regenerated chitosan is characterized and utilized as a catalyst in the formation of imines efficiently.

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Article information

DOI: https://doi.org/10.1039/C3GC42166J
Article type: Communication
Submitted: 20 Oct 2013
Accepted: 08 Jan 2014
First published: 10 Jan 2014

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Green Chem., 2014,16, 2102-2106

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Precipitation of chitosan from ionic liquid solution by the compressed CO₂ anti-solvent method

X. Sun, Z. Xue and T. Mu, Green Chem., 2014, 16, 2102 DOI: 10.1039/C3GC42166J

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