Research Article
Priyanka Tabhane1, Omprakash P
Abstract
The ultrasonic technique provides a powerful, effective and reliable probe to investigate properties of polymer solution. In the present investigation, ultrasonic velocities, densities and viscosities have been measured in 0.1M solution using pulse echo overlap technique at 293K at different concentrations of polyvinyl chloride in tetrahydrofuran. Thermoacoustical parameters viz., adiabatic compressibility, relaxation time, molar sound velocity, molar compressibility, acoustic impedance, van der Waals’ constant and internal pressure have been computed from the experimental data. The variation of ultrasonic velocity and other thermo-acoustical parameters shows nonlinear increase or decrease with molar concentration. The nature of polymer-solvent interaction and the effect of concentration on the molecular interaction of polyvinyl chloride in tetrahydrofuran have been studied