ACOUSTICAL STUDIES OF COPOLYMER OF P-HYDROXY BENZOIC ACID AND FORMALDEHYDE IN N, N-DIMETHYL FORMAMIDE AND DIMETHYL SULFOXIDE BY ULTRASONIC VELOCITY MEASUREMENTS


S. S. Kharkale, S. S. Bhuyar, M. K. Gaidhane

Abstract


The density (ρ), viscosity (η) and ultrasonic speeds (U) of copolymer of p-hydroxy benzoic acid and formaldehyde in dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO) solutions have been investigated to understand the effect of substituent’s on intermolecular interactions at 283K, 288K, 293K, 298K, and 303K. Various acoustical parameters such as adiabatic compressibility (β), intermolecular free length (Lf), acoustical impedance (Z), internal pressure (π), relaxation time (τ) and relative association (RA) were determined and correlated with concentration (C). A good correlation between a given parameter and concentration is observed at all temperatures and solvent systems studied. The results have been used to discuss the nature and strength of intermolecular interactions in the system.

Keywords: Molecular interaction, Acoustical parameters, Solute-solvent and Solute-Solvent interactions, Internal pressure.

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About this article

Title

ACOUSTICAL STUDIES OF COPOLYMER OF P-HYDROXY BENZOIC ACID AND FORMALDEHYDE IN N, N-DIMETHYL FORMAMIDE AND DIMETHYL SULFOXIDE BY ULTRASONIC VELOCITY MEASUREMENTS

Date

06-01-2015

Additional Links

Manuscript Submission

Journal

International Journal of Current Pharmaceutical Research
Vol 7, Issue 1, 2015 Page: 62-65

Online ISSN

0975-7066

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121 Views | 19 Downloads

Authors & Affiliations

S. S. Kharkale
Department of Chemistry, Shri Lemdeo Patil Mahavidyalaya, Mandhal (Kuhi): 441210. Nagpur

S. S. Bhuyar

M. K. Gaidhane


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