Molecular Solutions of Cellulose in Mixtures of Ionic Liquids with Pyridine

Evlampieva, Natalia P.; J\", ; urgen Vitz, ; Schubert, Ulrich S.; Ryumtsev, Evgeny I.

Abstract:

New systems suitable for determination of molecular characteristics of cellulose, mixtures of ionic liquids based on 1-n-alkyl-3-methylimidazolium with pyridine, were found. In ionic liquid–pyridine mixtures, cellulose is dispersed on the molecular level. The cellulose–ionic liquid–pyridine systems with 1-ethyl-3- methylimidazolium acetate and 1-ethyl-3-methylimidazolium diethyl phosphate are stable in time. The dynamic viscosity and refractive index of the mixtures can be controlled by varying the ionic liquid to pyridine ratio. The viscometric and dynamooptical properties of cellulose in these mixtures were compared with those in Cadoxen.

Year:

2009

Type of Publication:

Article

Journal:

Russian Journal of Applied Chemistry

Volume:

82

Number:

4

Pages:

666 - 672