Ionic Liquids for the Dissolution and Regneration of Cellulose | Zendy

Richard P. Swatloski | Zendy

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Ionic Liquids for the Dissolution and Regneration of Cellulose

Author(s) -

Richard P. Swatloski

Publication year - 2002

Publication title -

ecs proceedings volumes

Language(s) - English

Resource type - Journals

eISSN - 2576-1579

pISSN - 0161-6374

DOI - 10.1149/200219.0155pv

Subject(s) - ionic liquid , cellulose , dissolution , chemical engineering , aqueous solution , regenerated cellulose , extraction (chemistry) , homogeneous , ionic bonding , solvent , chemistry , materials science , organic chemistry , catalysis , ion , engineering , physics , thermodynamics

Cellulose derivatives (Figure 1) have many important commercial applications in the fiber, paper, membrane, polymer and paints industries. However, there are only a limited number of common solvents in which cellulose is soluble; solvents include, carbon disulfide, N,Ndimethylacetamide/lithium chloride (DMAC/LiCl), concentrated inorganic salt (ZnCl/H2O, Ca(SCN)2/H2O) and mineral acids (H2SO4/H3PO4), or molten salt hydrates (LiClO4.3H2O, NaSCN/KSCN/LiSCN/H2O). The efficiency of existing methods for dissolving and derivitizing cellulose can be significantly improved by the availability of suitable solvents for refined and natural cellulose; such an example is N-methylmorpholine-Noxide (NMMO), used as a solvent for non-derivitizing dissolution of cellulose for the production of lyocell fibers.

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