Journal
JOURNAL OF POLYMERS AND THE ENVIRONMENT
Volume 20, Issue 1, Pages 37-42Publisher
SPRINGER
DOI: 10.1007/s10924-011-0331-3
Keywords
Chitin; Cellulose; Composite film; Ionic liquid
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In this study, we performed the facile preparation of chitin/cellulose composite films using two ionic liquids, 1-allyl-3-methylimidazolium bromide (AMIMBr) and 1-butyl-3-methylimidazolium chloride (BMIMCl); the former dissolves chitin and the latter dissolves cellulose. First, solutions of chitin in AMIMBr and cellulose in BMIMCl were individually prepared by heating each mixture at 100 A degrees C for 24 h. Then, the homogeneous mixture of the two solutions was thinly casted on a glass plate, followed by standing at room temperature for 2 h. After the material was subjected to successive Soxhlet extractions with ethanol for 12 h and with water for 12 h, the residue was dried at room temperature to give a composite film. The crystalline structures of the polysaccharides were evaluated by the X-ray diffraction measurement. Furthermore, the thermal stability and mechanical property of the resulting composite film were estimated by the thermal gravimetric analysis measurement and tensile testing, respectively.
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