期刊
CARBOHYDRATE POLYMERS
卷 69, 期 3, 页码 579-582出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2007.01.010
关键词
sugarcane bagasse; cellulose acetate; acetylation; optimization; viscosity-average molecular weight
In this work we performed an optimization process of the acetylation reaction of sugarcane bagasse cellulose. The optimization was carried out varying acetic acid, acetic anhydride and catalyst volume, as well as reaction and activation times. Intrinsic viscosity was used as parameter for determining the quality of the produced material. Cellulose acetate viscosity-average molecular weight increased from 5.5 x 10(3) to 55.5 x 10(3) g mol(-1). (C) 2007 Elsevier Ltd. All rights reserved.
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