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- W3139432432 abstract "This paper deals with investigating molecular interaction of Polyvinyle pyrolidone polymer having molecular weight 40,000 (PVP-40) withwater and Dimethyl Sulfoxide (DMSO).Ultrasonic velocity (u), density (ρ) and coefficient of viscosity (η) were measured for solutions of PVP-water and PVP-DMSO system for different con-centrations with range 0-50 Wt%. Ultrasonic velocity measurements were done by pulse-echo technique at frequen-cy 5 MHz. The measurements were made at atmospheric pressure and room temperature. The experimental results have been used to calculate various acoustical parameters such as adiabatic compressibility (β), acoustical imped-ance (Z) free length (Lf) and relaxation time (τ), absorption coefficient (α/f2). The variations of these parameters under different conditions of concentrationhave been used to discuss the nature and extent of intermolecular inter-actions between the component molecules. The effect of polymer on solvent has also been studied." @default.
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- W3139432432 date "2019-01-01" @default.
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- W3139432432 title "Investigation of Molecular Interactions of Polyvinyl Pyrrolidone (PVP-40) with Water and DMSO using Acoustic Spectroscopic Technique" @default.
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