Table of Contents
ISRN Polymer Science
Volume 2012, Article ID 251950, 9 pages
http://dx.doi.org/10.5402/2012/251950
Research Article

Blending of Cellulose and Chitosan in Alkyl Imidazolium Ionic Liquids

1Fibres from Natural Polymers Department, Institute of Biopolymers and Chemical Fibers, Skłodowskiej-Curie 19/27, 90-570 Lodz, Poland
2Institut für Organische Chemie und Makromolekulare Chemie, Friedrich Schiller University of Jena, Humboldtsraße 10, 07743 Jena, Germany

Received 12 September 2012; Accepted 11 October 2012

Academic Editors: A. Hashidzume and A. V. Popov

Copyright © 2012 Olga Kuzmina et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The production of cellulose/chitosan blends in alkyl imidazolium ionic liquids (ILs) was studied in this work. Selected organic solvents, such as dimethyl sulfoxide, ethyl acetate, and diethyl ether, were used as cosolvents. The addition of cosolvents decreased the viscosity of cellulose/chitosan solutions in ILs and facilitated the dissolution of polysaccharides, thereby decreasing the and polymer aggregates sizes in the solutions. The cellulose/chitosan films were produced from the studied solutions. The presence of one of cosolvent and ILs in the blended films was confirmed by FTIR spectroscopy. The blended film is stronger than pure cellulose film, and the addition of cosolvents has an influence on its mechanical properties.