Dielectric relaxation study of formamide–propylene glycol using time domain reflectometry

Navarkhele, V. V.; Bhanarkar, M.K.

doi:10.1080/00319104.2010.508041

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…The positive values of excess dielectric constant suggest that the effective number of dipoles in the mixture is greater than the corresponding average number in pure liquids; this may be due to the formation of new structure leading to a higher macroscopic permittivity. Similar results have been reported by Navarkhele et al in dielectric relaxation study of formamide-propylene glycol using time domain reflectometry, in the study the authors have reported that, the values of ( E ) are negative up to 55% of mole fraction of PLG and positive for the rest of the mole fraction of PLG in the liquid mixtures [27]. Negative values of excess dielectric constant of waterethanol and water with n-butanol binary mixtures show that, in the mixture the solutions interacts in such a way that the effective dipole moment decreases.…”

Section: Excess Dielectric Constant (ε E )supporting

confidence: 88%

Static Dielectric Constants, Densities, Refractive Indices and Related Properties of Binary Mixtures at Various Temperatures Under Atmospheric Pressure

Navarkhele

Navarkhele²

2022

International Journal of Thermodynamics

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Experimental dielectric constants at (293.15, 298.15, 303.15) K, densities and refractive indices at 293.15 K are reported for water- ethanol and water- n-butanol binary mixture systems over the entire volume fraction range and atmospheric pressure. From the experimental dielectric data, the excess dielectric constant, effective Kirkwood correlation factor, Bruggeman factor and from density and refractive index data various parameters and their excess properties like excess density, excess refractive index, excess molar polarization, and excess molar volume were estimated and reported in the study. The static dielectric constant of the studied binary mixtures decreases with increase in temperature and volume fraction of the solutes. The density values are decreasing and refractive indices are increasing with increasing volume fraction of ethanol and n-butanol in water. Excess molar volumes values of ethanol and n-butanol are negative over the entire volume fraction range shows the presence of intermolecular interaction and hydrogen bonding in both the binary mixtures.

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Section: Excess Dielectric Constant (ε E )supporting

confidence: 88%

Static Dielectric Constants, Densities, Refractive Indices and Related Properties of Binary Mixtures at Various Temperatures Under Atmospheric Pressure

Navarkhele

Navarkhele²

2022

International Journal of Thermodynamics

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“…The dielectric permittivity of the mixtures increases with increase in volume fraction of water; this is due to decrease in carbon atoms number and size-shape of the composite molecules after hydrogen bonding interaction. This could be attributed to an increase in a number of dipoles in the complex, which may lead to an increase in the volume of the rotating molecules [24,25].…”

Section: Discussionmentioning

confidence: 99%

Dielectric Relaxation Study of Binary Mixtures at Different Temperatures

Navarkhele

2016

Int J Pharm Pharm Sci

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<div class="Section1">Objective: The objective of this work is to study the intermolecular interaction and hydrogen bonding of the two binary mixtures at different temperatures which are determined from static dielectric constants and their excess properties.Methods: Dielectric measurements have been carry out using a sensor which is based on frequency domain reflectometry technique. The excess dielectric properties, Kirkwood correlation factor and Bruggeman factor of the binary mixtures have also been calculated and reported in this paper.Results: The positive and negative behavior of excess dielectric permittivity and variation in linear relation in Bruggeman factor suggests the presence of intermolecular interaction in the binary mixtures. The angular Kirkwood correlation factor confirms the parallel and antiparallel orientation of the dipoles in the mixtures.Conclusion: The static dielectric constant of binary systems increases with the addition of the volume fraction of water and decreases with increase in temperature. From excess properties, it is confirmed that there is an intermolecular interaction between the studied binary systems. Such study is useful in drug-receptor interaction.</div>

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Dielectric relaxation and co-operative dynamics of propylene glycol – Ethanol mixtures using time domain spectroscopy

Bhadane

Joshi

Kanse

et al. 2021

Materials Today: Proceedings

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Dielectric relaxation study of formamide–propylene glycol using time domain reflectometry

Cited by 9 publications

References 20 publications

Static Dielectric Constants, Densities, Refractive Indices and Related Properties of Binary Mixtures at Various Temperatures Under Atmospheric Pressure

Static Dielectric Constants, Densities, Refractive Indices and Related Properties of Binary Mixtures at Various Temperatures Under Atmospheric Pressure

Dielectric Relaxation Study of Binary Mixtures at Different Temperatures

Dielectric relaxation and co-operative dynamics of propylene glycol – Ethanol mixtures using time domain spectroscopy

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