1-烯丙基,3-甲基咪唑室温离子液体的合成及其对纤维素溶解性能的初步研究  

SYNTHESIS OF 1-ALLYL,3-METHYLIMIDAZOLIUM-BASED ROOM- TEMPERATURE IONIC LIQUID AND PRELIMINARY STUDY OF ITS DISSOLVING CELLULOSE

作　　者：任强[1] 武进[2] 张军[2] 何嘉松[2] 过梅丽[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100083 [2]中国科学院化学研究所分子科学中心工程塑料国家重点实验室,北京100080

出　　处：《高分子学报》2003年第3期448-451,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金 (基金号 5 0 10 30 11)资助项目

摘　　要：A novel room-temperature ionic liquid (RTIL),1-allyl,3-methylimidazolium chloride (［AMIM］Cl),was synthesized,ch aracterized and used for dissolving cellulose.The solubility of cellulose in ［ AMIM］Cl was better than in 1-butyl,3-methylimidazolium (［BMIM］Cl).The pris tine cellulose and two cellulose samples regenerated from ［AMIM］Cl and ［BMIM ］Cl solutions were compared by FTIR,WAXD and TGA measurements.Results show t hat these two RTILs are non-derivatizing solvents for cellulose.After regenera tion from RTIL solutions,the crystalline form of cellulose films is completely transformed from cellulose Ⅰ to cellulose Ⅱ.Compared to pristine cellulose,t he regenerated cellulose exhibits a lower onset temperature of thermal decomposi tion,with a higher char yield.A novel room-temperature ionic liquid (RTIL),1-allyl,3-methylimidazolium chloride (［AMIM］Cl),was synthesized,ch aracterized and used for dissolving cellulose.The solubility of cellulose in ［ AMIM］Cl was better than in 1-butyl,3-methylimidazolium (［BMIM］Cl).The pris tine cellulose and two cellulose samples regenerated from ［AMIM］Cl and ［BMIM ］Cl solutions were compared by FTIR,WAXD and TGA measurements.Results show t hat these two RTILs are non-derivatizing solvents for cellulose.After regenera tion from RTIL solutions,the crystalline form of cellulose films is completely transformed from cellulose Ⅰ to cellulose Ⅱ.Compared to pristine cellulose,t he regenerated cellulose exhibits a lower onset temperature of thermal decomposi tion,with a higher char yield.

关 键 词：1-烯丙基 3-甲基咪唑 室温离子液体 合成 纤维素 溶解性能 溶剂 

分 类 号：O645[理学—物理化学]