Molecular Interactions in 1,4-Dioxane, Tetrahydrofuran, and Ethyl Acetate Solutions of 1,1′-Bis(4-isopropyloxyacetylphenoxy)cyclohexane on Reological, Density, and Acoustic Behavior
- Авторы: Dhaduk B.1, Patel C.1, Parsania P.1
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Учреждения:
- Polymer Division, Department of Chemistry
- Выпуск: Том 91, № 13 (2017)
- Страницы: 2495-2502
- Раздел: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/169820
- DOI: https://doi.org/10.1134/S0036024417130052
- ID: 169820
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Аннотация
Various thermo-acoustical parameters of 1,4-dioxane, tetrahydofuran and ethylacetae solutions of 1,1′-bis(4-isopropyloxyacetylphenoxy)cyclohexane were determined at different temperatures using density, viscosity and ultrasonic speed and correlated with concentration. Linear increase of ultrasonic speed, specific acoustical impedance, Rao’s molar sound function, Van der Waals constant and free volume with concentration C and decreased with temperature. Linear decrease of adiabatic compressibility, internal pressure, intermolecular free path length, classical absorption coefficient, and viscous relaxation time with concentration and increased with temperature indicated existence of strong molecular interactions in solutions and further supported by positive values of solvation number. Gibbs free energy of activation decreased with C in all three systems. It is decreased with T in 1,4-dioxane, while increased in tetrahydrofuran and ethyl acetate. Both enthalpy of activation and entropy of activation are increased gradually with C in 1,4-dioxane, while they are negative and remained practically independent of concentration in 1,4-dioxane and tetrahydofuran systems.
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B. Dhaduk
Polymer Division, Department of Chemistry
Email: phparsania22@gmail.com
Индия, Rajkot, Gujrat, 360005
Ch. Patel
Polymer Division, Department of Chemistry
Email: phparsania22@gmail.com
Индия, Rajkot, Gujrat, 360005
P. Parsania
Polymer Division, Department of Chemistry
Автор, ответственный за переписку.
Email: phparsania22@gmail.com
Индия, Rajkot, Gujrat, 360005