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We investigated the effect of solvent exchange on the supramolecular structure and the molecular mobility of the cellulose molecule to clarify the mechanism of the dissolution of cellulose in lithium chloride/N,N-dimethylacetamide (LiCl/DMAc). Among the celluloses that were solvent exchanged in different ways, the DMAc-treated celluloses dissolved most rapidly. Dissolution of the acetone-treated celluloses...
Most celluloses are soluble in 8 mass % lithium chloride/N,N-dimethylacetamide (LiCl/DMAc) and/or 8 mass % LiCl/1,3-dimethyl-2-imidazolidinone (LiCl/DMI) with solvent-exchange treatment from water to DMAc or DMI through acetone. In this study, the residual DMAc or DMI adsorbed on celluloses after the solvent-exchange and then vacuum-drying at 60 °C for 48 h was determined by UV spectroscopy and elementary...
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