Imidazolium Chloride-LiCl Melts as Efficient Solvents for Cellulose 


Vol. 34,  No. 12, pp. 3771-3776, Dec.  2013
10.5012/bkcs.2013.34.12.3771


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  Abstract

1-Alkyl-3-methylimidazolium chloride-LiCl melts were prepared from the reaction of 1-alkyl-3-methylimidazolium chloride ([RMIm]Cl; R=allyl or n-butyl) and lithium chloride, and their ability to dissolve cellulose was evaluated. The solubility of cellulose was greatly increased to 320% when [RMIm]Cl was replaced by [RMIm][LiCl2]. Dissolved cellulose in LiCl/[RMIm]Cl melts was successfully regenerated by adding water and LiCl/[RMIm]Cl melts were easily recovered by removing water. As supported by the computational results, the higher solubility of cellulose in [RMIm][LiCl2] can be ascribed to the increased bond distance between anion and C(2)-H of the imidazolium ring compared with that in [RMIm]Cl, thereby resulting in the increased interaction between [LiCl2]- and the hydroxyl groups of cellulose.

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  Cite this article

[IEEE Style]

S. Agarwal, A. M. Hossain, Y. Choi, M. Cheong, H. G. Jang, J. S. Lee, "Imidazolium Chloride-LiCl Melts as Efficient Solvents for Cellulose," Bulletin of the Korean Chemical Society, vol. 34, no. 12, pp. 3771-3776, 2013. DOI: 10.5012/bkcs.2013.34.12.3771.

[ACM Style]

Shalu Agarwal, Anwar Md. Hossain, Young-Seop Choi, Minserk Cheong, Ho Gyeom Jang, and Je Seung Lee. 2013. Imidazolium Chloride-LiCl Melts as Efficient Solvents for Cellulose. Bulletin of the Korean Chemical Society, 34, 12, (2013), 3771-3776. DOI: 10.5012/bkcs.2013.34.12.3771.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949