Startseite Acoustic parameter investigation of polyvinyl acetate with acetic acid using ultrasonic technique
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Acoustic parameter investigation of polyvinyl acetate with acetic acid using ultrasonic technique

  • Baljinder Kaur und Kailash C. Juglan EMAIL logo
Veröffentlicht/Copyright: 7. November 2013
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Abstract

Density, viscosity and ultrasonic velocity of polyvinyl acetate with acetic acid have been measured at a temperature of 299K for different concentrations. Density and viscosity have been measured for a binary liquid mixture with a specific gravity bottle and a viscometer. Ultrasonic velocity has been measured using a single crystal interferometer at a frequency of 2 MHz. Ultrasonic velocities for the binary mixture at 1 MHz and 2 MHz was compared by taking some values from the literature. The sound velocity (V), density (ρ) and viscosity (η) were used to calculate the parameters such as adiabatic compressibility (β), acoustic impedance (Z), intermolecular free length (Lf), ultrasonic attenuation (α/f2) and relaxation time (τ). The variations of experimentally obtained parameters indicate the presence of molecular interaction between the molecules of the mixture. The ultrasonic velocity increased with an increase in concentration. Solute-solvent interaction is further confirmed by viscosity values, which increased with increasing concentration suggesting more association between solute and solvent molecules. The linear variations in Rao’s constant and Wada’s constant suggest the absence of complex formation.


Corresponding author: Kailash C. Juglan, Department of Physics, Lovely Professional University, Phagwara, Punjab 144402, India, e-mail:

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Received: 2013-5-19
Accepted: 2013-9-16
Published Online: 2013-11-07
Published in Print: 2013-12-01

©2013 by Walter de Gruyter Berlin Boston

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