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Title: Dielectric relaxation and hydrogen bonding interaction of solvents using time domain reflectometry technique from 10 MHz to 50 GHz
Authors: Deshmukh, A R
Shinde, R V
Ingole, S A
Pathan, A W
Lokhande, M P
Sarode, A V
Kumbharkhane, A C
Keywords: Time domain reflectometry;Dielectric permittivity;Dielectric loss;Havriliak-Negami equation
Issue Date: Apr-2018
Publisher: NISCAIR-CSIR, India
Abstract: Complex permittivity spectra ε*(ν) of nine different solvents have been studied in order to extract information at molecular level. The study covers highly polar organic compounds like water having high polarity index (PI=9.0) to chlorobenzene with low polarity index (PI=0.2) and also for the binary mixture of acetonitril (ACN)-dioxane (Dx) and acrylonitrile (ACRN) –dioxane (Dx). Time domain reflectometry (TDR) has been employed in the frequency region of 10 MHz to 50 GHz at room temperature to obtain various parameters such as complex permittivity ε*(w), dielectric constant ε0, high frequency limiting dielectric constant (ε), relaxation amplitude (∆ε) and relaxation time (τ). The values of dielectric parameters obtained have been compared with the literature values. Havriliak-Negami equation has been used to analyze the complex permittivity spectra. The Luzar theory and Kirkwood correlation factor are also applied to extract other dielectric parameters.
Page(s): 346-352
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.56(04) [April 2018]

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