化工学报2015，Vol.66Issue(Z1)：32-37,6.DOI:10.11949/j.issn.0438-1157.20141730
1-丁基-3-甲基咪唑氯盐离子液体水溶液对纤维素的作用
Effect of 1-butyl-3-methylimidazolium chloride-water mixtures on cellulose
摘要
Abstract
Dissolution and crystalline structure changes of cellulose treated by 1-butyl-3-methylimidazolium chloride [C4mim]Cl-water mixtures were investigated at 90℃ under 1.0 MPa. Amorphous cellulose was found to be partial dissolved in the [C4mim]Cl-water mixtures with [C4mim]Cl content of 60%—95%, and adding deionized (DI) water into the cellulose-[C4mim]Cl solution for cellulose regeneration. The crystallinity index (CrI) and the dimension of average crystallite size (Dhkl) for MCC obviously change with increasing treatment duration, but retain the characteristic shapes of cellulose I crystalline structure. There are significant oscillations in the intensities of hydrogen bonds of cellulose for the mixtures with different [C4mim]Cl content. Different contents of ionic liquid have different effect on microcrystalline cellulose.关键词
离子液体-水/纤维素/溶解度/结晶度Key words
ionic liquids-water/cellulose/solubility/crystallinity分类
化学化工引用本文复制引用
王琳琳,王俊梅,王鑫,魏立纲,马英冲,李坤兰,王艳涛,丁珊,万文英,闫冰,赵德扬..1-丁基-3-甲基咪唑氯盐离子液体水溶液对纤维素的作用[J].化工学报,2015,66(Z1):32-37,6.基金项目
国家自然科学基金项目(21106011, 21276034) （21106011, 21276034）
辽宁省教育厅科学研究一般项目(L2012195).Foundation item: supported by the National Natural Science Foundation of China (21106011, 21276034). （L2012195）
