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Ionic Liquids — Promising but Challenging Solvents for Homogeneous Derivatization of Cellulose
Laboratory of Fibre and Cellulose Technology, Åbo Akademi University, Porthansgatan 3 FI-20500 Turku, Finland
Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Centre of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743 Jena, Germany
* Author to whom correspondence should be addressed.
Received: 11 May 2012; in revised form: 5 June 2012 / Accepted: 6 June 2012 / Published: 15 June 2012
Abstract: In the past decade, ionic liquids (ILs) have received enormous interest as solvents for cellulose. They have been studied intensively for fractionation and biorefining of lignocellulosic biomass, for dissolution of the polysaccharide, for preparation of cellulosic fibers, and in particular as reaction media for the homogeneous preparation of highly engineered polysaccharide derivatives. ILs show great potential for application on a commercial scale regarding recyclability, high dissolution power, and their broad structural diversity. However, a critical analysis reveals that these promising features are combined with serious drawbacks that need to be addressed in order to utilize ILs for the efficient synthesis of cellulose derivatives. This review presents a comprehensive overview about chemical modification of cellulose in ILs. Difficulties encountered thereby are discussed critically and current as well as future developments in this field of polysaccharide research are outlined.
Keywords: cellulose; ionic liquids; homogeneous synthesis; cellulose derivatives; reaction media
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MDPI and ACS Style
Gericke, M.; Fardim, P.; Heinze, T. Ionic Liquids — Promising but Challenging Solvents for Homogeneous Derivatization of Cellulose. Molecules 2012, 17, 7458-7502.
Gericke M, Fardim P, Heinze T. Ionic Liquids — Promising but Challenging Solvents for Homogeneous Derivatization of Cellulose. Molecules. 2012; 17(6):7458-7502.
Gericke, Martin; Fardim, Pedro; Heinze, Thomas. 2012. "Ionic Liquids — Promising but Challenging Solvents for Homogeneous Derivatization of Cellulose." Molecules 17, no. 6: 7458-7502.