咪唑类离子液体溶解纤维素的研究进展

Research progress in cellulose dissolution in imidazolium ionic liquids

综述了1-丁基-3-甲基咪唑氯盐、1-烯丙基-3-甲基咪唑氯盐、1-(2-羟乙基)-3-甲基咪唑氯盐等咪唑类离子液体对纤维素的溶解性能,咪唑类离子液体/纤维素溶液的流变性能以及咪唑类离子液体在纤维素纤维及薄膜加工中的应用;咪唑类离子液体均能较好地溶解纤维素,咪唑类离子液体/纤维素溶液均为切力变稀流体;指出选择合适的阴、阳离子组合,开发条件温和、高溶解性能的新型离子液体是今后研究的重点。

The cellulose dissolution capacity of imidazolium ionic liquids,namely,1-butyl-3mehylimidazolium chloride,1-propylene -3-methylimidazolium chloride,1-（2-hydroxylethyl）-3-methylimidazolium chloride,were summarized,as were the rheological behavior of imidazolium ionic liquids/cellulose solution and the application of imidazolium ionic liquid in cellulose fiber and membrane processing.Cellulose can be well dissolved in imidazolium ionic liquids.Imidazolium ionic liquids/cellulose solution belongs to shear thinning fluid.It was pointed out that the research should be focused on novel ionic liquid with rational anion cation combination high dissolution capacity and moderate processing conditions.