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http://dx.doi.org/10.7584/ktappi.2013.45.2.056

Improvement in Dissolution of Cellulose with Ionic liquid by the Electron Beam Treatment  

Lee, Won-Sil (Institute of Chemical and Biological Engineering, Chungnam Natl. Univ.)
Jung, Wong Gi (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Sung, Yong Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.45, no.2, 2013 , pp. 56-65 More about this Journal
Abstract
Electron beam treatment was applied for improving dissolution of cellulose with ionic liquids. Two ionic liquids, 1-allyl-3-methylimidazolium chloride ([Amim]Cl]: AC) and 1,3-dimethylimidazolium methylphosphite ([Dmim][$(MeO)(H)PO_2$]: Me) were used for this experiment. Treatment with electron beams up to dose of 400 kGy resulted in the increase of hot water extract and alkali extract of cotton pulp and the great reduction in the molecular weight of cellulose. For the dissolution of cotton pulp with two ionic liquids, the electron beam treated samples showed faster dissolution. The dissolved cellulose with Me ionic liquid were regenerated with acetonitrile and the structure of regenerated cellulose showed distinct difference depending on the electron beam treatment. Those results provide the electron beam pre-treatment could be applied as an energy efficient and environmentally benign method to increase the dissolution of cellulose with ionic liquids.
Keywords
Ionic liquid; electron beam treatment; cotton pulp; regenerated cellulose;
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Times Cited By KSCI : 5  (Citation Analysis)
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