Table of Contents
Indian Journal of Materials Science
Volume 2016, Article ID 9582582, 6 pages
http://dx.doi.org/10.1155/2016/9582582
Research Article

Effect of Solvents on the Ultrasonic Velocity and Acoustic Parameters of Polyvinylidene Fluoride Solutions

1Department of Physics, KLS Gogte Institute of Technology, Belgaum 590008, India
2Department of Physics, Bheemanna Khandre Institute of Technology, Bhalki 585328, India

Received 12 March 2016; Accepted 10 April 2016

Academic Editor: Ramki Kalyanaraman

Copyright © 2016 S. S. Kulkarni and U. V. Khadke. 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

Ultrasonic studies provide a wealth of information in understanding the molecular behavior and intermolecular interaction of polymer solvent mixtures. Attempts were made to measure ultrasonic velocity, density, and viscosity for the mixture of polyvinylidene fluoride (PVDF) in acetone and dimethylformamide (DMF) of various stoichiometric ratios at 300 K using crystal controlled ultrasonic interferometer (Mittal make), pyknometer (specific gravity bottle), and Ostwald viscometer, respectively. The acoustic parameters adiabatic compressibility (), intermolecular free path length (), acoustic impedance (), relative association (RA), ultrasonic attenuation (), and relaxation time () have been estimated using experimental data with well-known techniques. The variation of these acoustic parameters is explained in terms of solute-solvent molecular interaction in a polymer solution.