Amphoteric Modification of Sugarcane Bagasse Hemicelluloses and Characterization of the Novel Derivatives

文献类型： 外文期刊

第一作者： Liu, Xinliang

作者： Liu, Xinliang;Wu, Fusheng;Li, Zhoujun;Wang, Shuangfei;Weng, Mengling

作者机构：

关键词： Sugarcane bagasse;Hemicellulose;Cationic modification;Anion modification

期刊名称：ASIAN JOURNAL OF CHEMISTRY （ 影响因子：0.355； 五年影响因子：0.293 ）

ISSN： 0970-7077

年卷期： 2013 年 25 卷 14 期

页码：

收录情况： SCI

摘要： Modifiers were applied to make amphoteric modification on sugarcane bagasse hemicelluloses amount of modifiers and sodium hydroxide, reaction temperature, reaction time, the order of modification etc., would have some impact on the gender modification. Results showed that optimal cationic modified product could be obtained with 0.3 g (3-chloro-2-hydroxypropyl) trimethylammonium chloride and 0.1 g sodium hydroxide at 60 degrees C for 2 h; optimal anionic modified product could be obtained with 0.4 g chloro-acetic acid and 0.3 g sodium hydroxide at 80 degrees C for 2 h. Better gender modified products could be achieved as the order of anionic modification as the first. IR, NMR, scanning electronic microscopy and thermal analysis were used to characterize gender modified bagasse hemicelluloses. Amphoteric method in this study could draw carboxyl and quaternary ammonium into sugarcane bagasse hemicelluloses and molecular structure and morphology of sugarcane bagasse hemicelluloses after amphoteric modification were pointed out, with its thermal stability decreased.

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