Influence of water on the dissolution of cellulose in selected ionic liquids

被引：236

作者：

Mazza, Mathieu ^{[1
,2
]}

Catana, Dan-Andrei ^{[1
,2
]}

Vaca-Garcia, Carlos ^{[1
,2
]}

Cecutti, Christine ^{[1
,2
]}

机构：

[1] ENSIACET, UMR 1010, INRA, F-31077 Toulouse 4, France

[2] Univ Toulouse, INPT, UMR 1010, Toulouse, France

来源：

CELLULOSE | 2009年 / 16卷 / 02期

关键词：

Cellulose dissolution; Ionic liquids; Turbidimetric measurements; 1-N-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE; TEMPERATURE; C-13;

D O I：

10.1007/s10570-008-9257-x

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

082905 [生物质能源与材料]; 140303 [工业设计];

摘要：

Cellulose (7% water) was thoroughly dispersed in various ionic liquids (IL) and the turbidity of the mixture was investigated to distinguish real dissolution from fine dispersion. The dissolving ability of 1-butyl-3-methylimidazolium chloride (BMIMCl know cellulose solvent) and 11 other commercial IL (not reported as cellulose solvents) was studied. From the latter, only 1,3-dimethylimidazolium dimethylphosphate (DMIMDMP) could dissolve cellulose. The influence of water content on the real dissolution of cellulose in these two IL was investigated. The maximum theoretical amount of dissolved anhydrous cellulose in the IL was determined by extrapolation methodology at different temperatures. For cellulose in BMIMCl, it was 8.75 g/100 g of IL at 95 A degrees C. DMIMDMP could achieve real cellulose dissolution only in a practically anhydrous system (2.3 g/100 g of IL at 30 A degrees C) but dissolution was physically limited by high viscosity.

引用

页码：207 / 215

页数：9

共 15 条

[1]

The vapour pressures of saturated aqueous solutions of sodium chloride, sodium bromide, sodium nitrate, sodium nitrite, potassium iodate, and rubidium chloride at temperatures from 227 K to 323 K [J].