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image of Ultrasonic Investigation of Molecular Interactions in Novel Polymer Dextran and Aqueous Urea Solutions

Abstract

Aim

The purpose of this study was to investigate the molecular interactions between urea and dextran.

Background

The molecular interaction was examined using an ultrasonic method.

Objective: The objective of the study was to use measurable data such as density, viscosity, and ultrasonic velocity to determine the thermoacoustical parameters. The kind and intensity of polymer molecular interactions as a function of temperature and concentration at various frequencies have been extensively assessed using the ultrasonic approach. The viscosity (η), density (d), and ultrasonic speed (U) of polymer dextran and aqueous 6(M) urea were measured throughout a temperature range of 303 K to 323 K at 5 K intervals.

Method

A specific gravity bottle, an Ostwald viscometer, and an ultrasonic interferometer were used to determine the density, viscosity, and ultrasonic velocity, respectively.

Results

The obtained thermo acoustic parameter suggests the presence of a molecular interaction in the investigated solution.

Conclusion

Solute-solvent interactions make up the bulk of interactions. The dynamics of molecular interactions change with frequency, resulting in less favorable and less efficient interactions at higher frequencies.

Others

The analysis revealed that changes in frequency and temperature produce specific differences in acoustic parameters.

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2025-04-22

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/content/journals/cmic/10.2174/0122133356334681241126062641
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Ultrasonic Investigation of Molecular Interactions in Novel Polymer Dextran and Aqueous Urea Solutions
Bentham Science Publishers ; https://doi.org/10.2174/0122133356334681241126062641
/content/journals/cmic/10.2174/0122133356334681241126062641
/content/journals/cmic/10.2174/0122133356334681241126062641
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  • Article Type:     Research Article
Keywords: binary liquid solution ; acoustic parameters ; Dextran ; dipole-dipole association ; molecular interaction ; ultrasonic technique

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