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

Literature Information

Publication Date 2014-01-10
DOI 10.1039/C3GC42166J
Impact Factor 10.182
Authors

Xiaofu Sun, Zhimin Xue, Tiancheng Mu


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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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