Structure and Thermal Stability of Sugarcane Bagasse Cellulose Regenerated from Dialkylphosphate Ion

• 作 者: MengWang[1]LiHongCui[2]JiHuaLi[2]XiaoYiWei[2]MaoFangHuang[2]QingHuangWang[2]
• 机 构: Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture,Agriculture Products
• 出 处: 中国作物学会甘蔗专业委员会第15次学术研讨会
• 发表日期: 2014年期

　　A phosphate-based ionic liquid,1-ethyl-3-methylimidazolium diethylphosphate ([EMIM][DEP]),was synthesized and used to dissolve sugarcane bagasse cellulose under microwave radiation.The original and regenerated cellulose were both characterized by X-ray diffraction,infrared spectroscopy,thermogravimetric analysis and scanning electron microscopy.The results showed that cellulose had a more porous and less crystalline structure after regeneration,whereas chemical composition had no change.Thermal stability of the regenerated cellulose was somewhat lower,corresponding to the decreased crystallinity.In short,the treatment with [EMIM][DEP] led to desirable structural modification on sugarcane bagasse cellulose via physical process.This is of great benefit to the subsequent downstream processes,such as enzymatic hydrolysis and ethanol fermentation.