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Multiphysics Experimental Approaches for Insight into the Hydrogen Bonded Structures of Ethylene Glycol and Glycerol Mixtures toward Green Solvent Technology

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Title Multiphysics Experimental Approaches for Insight into the Hydrogen Bonded Structures of Ethylene Glycol and Glycerol Mixtures toward Green Solvent Technology
 
Creator Saraswat, Mukul
Sengwa, R J
 
Subject Alcohols
Molecular interaction
Dielectric properties
Viscosity
Acoustic parameters
UV-Vis absorbance
 
Description 217-238
Alcohols and their mixtures are credited most important polar solvents for advances in pharmaceutical, chemical,
biological, thermal, and material technologies. A rigorous study for the characterization of hydrogen bonded heterogeneous
intermolecular structures that formed in a mixed solvent based on alcohols containing two and three hydroxyl groups
molecules is crucial to specific technological and industrial applications. Hence, in this work, the multiphysics experimental
approaches including the measurements of dielectric, electrical, viscous, acoustic, thermal, and optical properties are applied
and analyzed to confirm the behaviour of hydrogen bonded molecular structures of ethylene glycol (EG; dihydric alcohol)
with glycerol (Gl; trihydric alcohol) over the entire concentration range of EG+Gl mixtures at 298.15 K. The static dielectric
permittivity, direct current electrical conductivity, low frequency relaxation time, and refractive index values of the EG+Gl
mixtures are reported. Additionally, dynamic viscosity, density, ultrasound velocity, adiabatic compressibility,
intermolecular free length, acoustic impedance, free volume, Rao’s constant, Wada constant, and viscoacoustic relaxation
time of the EG+Gl mixtures are determined, and also explored their significance to these alcohols molecular interactions.
Ultraviolet-visible range absorbance behaviour of the alcohol mixtures is characterized in detail and confirmed the
electronic transitions at higher energy ultraviolet radiations. The detailed analysis of all the experimental results along with
the consideration of excess properties evidenced the formation of heterogeneous intermolecular hydrogen bonded structures
in these Newtonian-type alcohols mixtures. A small to adequate variation in the thermodynamical and other investigated
properties with the concentration variation showed that the EG+Gl mixture can be optimized as a green solvent according to
the prerequisite properties for huge advances in soft condensed matter technologies.
 
Date 2023-05-25T07:20:31Z
2023-05-25T07:20:31Z
2023-05
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61939
https://doi.org/10.56042/ijpap.v61i4.71288
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(04) [April 2023]