Journal
POLYMER
Volume 49, Issue 9, Pages 2321-2327Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2008.03.027
Keywords
chitin; ionic liquid; solvent
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A room temperature ionic liquid (RTIL), that is, 1-butyl-3-methylimidazolium acetate (BminAc), is proposed to be a new good solvent for native chitins with different origins and molecular weights. A water and a methanol coagulant were used to regenerate the dissolved chitins and chitin materials with a variety of structures were prepared. Wide-angle X-ray diffraction (WAXD), Fourier transform IR (FTIR), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM) were used to visualize the modifications of the native structures of chitin during the dissolution and the regeneration processes, as well as the morphological features and properties of the reconstituted chitin materials. (C) 2008 Elsevier Ltd. All rights reserved.
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