Dielectric relaxation and hydrogen bonding interaction of polyethylene glycol dimethyl ether in water mixture

Mathpati, R. N.; Hudge, P. G.; Kanse, K.S.; Joshi, Y.S.; Kumbharkhane, A.C.

doi:10.1080/00319104.2019.1633527

Cited by 5 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Bruggeman equation shows the linear dependency of f B on V E but, the experimental values of f B show a deviation from the linear relationship. Hence the Bruggeman equation needs to be modified by including an arbitrary parameter 'a' as [30].…”

Section: Bruggeman Factor (F B )mentioning

confidence: 99%

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Pabboj,

Lakhamawad,

Jinklor

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

The dielectric measurement of neat ethylene glycol monomethyl ether (EGMME), neat ethanol and their binary mixtures have been carried out using time domain technique in frequency range of 10 MHz to 50 GHz at the temperature range from 10 °C to 25 °C with a difference of 5 °C. The frequency domain technique within the frequency range of 20 Hz to 2 MHz is used to obtain complex dielectric permittivity ɛ*(ω), electrical modulus M*(ω), complex electrical conductivity σ*(ω) and loss tangent (tan δ) at 25 °C. The dielectric spectra obtained using TDR technique are fitted in Cole-Davidson model to extract the dielectric parameters such as static dielectric permittivity (εs), relaxation time (τ) and asymmetric distribution parameter (β). These relaxation parameter values are used to predict intermolecular hydrogen bonding between EGMME and ethanol molecules. Furthermore, the inter-molecular interactions through H-bonding between EGMME and ethanol molecules have been confirmed and discussed using Kirkwood correlation factor, excess permittivity, thermodynamic parameter, Bruggeman factor, excess molar volume, excess dielectric permittivity at high frequency and fourier transform infrared (FTIR) spectra.

show abstract

Section: Bruggeman Factor (F B )mentioning

confidence: 99%

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Pabboj,

Lakhamawad,

Jinklor

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

Water hydration of polyethylene glycol dimethyl ether

Zhang

Yan

Zhao

et al. 2023

The Journal of Chemical Physics

View full text Add to dashboard Cite

In this work, GHz and THz complex dielectric spectra of a polyethylene glycol dimethyl ether (2000 g/mol) aqueous solution were studied. The reorientation relaxation of water in this kind of macro-amphiphilic molecule solution can be well described by three Debye models, including under-coordinated water, bulk-like water [water molecules in a tetrahedral hydrogen bond network (bulk water) and bulk water molecules affected by hydrophobic groups], and slow hydrating water (water molecules donating hydrogen bonds to hydrophilic ether groups). The reorientation relaxation timescales of bulk-like water and slow hydration water both show increases with concentration from 9.8 to 26.7 ps and from 46.9 to 100.1 ps, respectively. By estimating the ratios of the dipole moment of slow hydration water to the dipole moment of bulk-like water, we calculated the experimental Kirkwood factors of bulk-like and slow hydrating water. The experimental Kirkwood factor of bulk-like water increased from 3.17 to 3.44 with concentrations, while the experimental Kirkwood factor of slow hydrating water roughly remained constant at 4.13 from concentrations of 15%–60%. The estimated water molecule numbers of three water components around monomers also confirm our sorting for water components.

show abstract

Dielectric relaxation study of aqueous glycol ethers with water using time domain reflectometry technique in the frequency range 10 MHz to 50 GHz

Khan

Lokhande

et al. 2022

Ferroelectrics

View full text Add to dashboard Cite

Dielectric relaxation and hydrogen bonding interaction of polyethylene glycol dimethyl ether in water mixture

Cited by 5 publications

References 13 publications

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Water hydration of polyethylene glycol dimethyl ether

Dielectric relaxation study of aqueous glycol ethers with water using time domain reflectometry technique in the frequency range 10 MHz to 50 GHz

Contact Info

Product

Resources

About