Table of Contents
International Journal of Carbohydrate Chemistry
Volume 2012 (2012), Article ID 906389, 9 pages
Research Article

Miscibility Studies of Hydroxypropyl Cellulose/Poly(Ethylene Glycol) in Dilute Solutions and Solid State

1Department of Polymer Science and Technology, Sri Krishnadevaraya University, Andhra Pradesh Anantapur 515003, India
2Department of Chemistry, Sri Krishnadevaraya University, Andhra Pradesh Anantapur 515003, India

Received 31 May 2012; Revised 21 August 2012; Accepted 22 August 2012

Academic Editor: Yuriy A. Knirel

Copyright © 2012 K. Sudharsan Reddy 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.


The miscibility of Hydroxypropyl cellulose (HPC)/poly(ethylene glycol) (PEG) blends over an extended range of concentrations in water. The viscosity, ultrasonic velocity, and refractive index of the above blend solutions have been measured at 30°C. The interaction parameters such as and μ proposed by Chee and α proposed by Sun have been obtained using the viscosity data to probe the miscibility of the polymer blends. The values indicated that the blends were miscible when HPC content is more than 40% in the blend. The obtained results have been confirmed by the ultrasonic velocity and refractive index studies. The films of the blends were prepared by solution casting method using water as a solvent. The prepared films have been characterized by analytical techniques such as FTIR, DSC, X-RD, and SEM to probe the miscibility of HPC/PEG blends. The compatibility in the above compositions may be due to the formation of H-bonding between hydroxyl groups of HPC and etheric oxygen atom of PEG molecules.