Dielectric relaxation studies of binary mixture of ethylene glycol mono phenyl ether and methanol by Time Domain Reflectometry

被引：24

作者：

Chaube, H. A. ^{[1
]}

Rana, V. A. ^{[1
]}

Hudge, P. ^{[2
]}

Kumbharkhane, A. C. ^{[2
]}

机构：

[1] Gujarat Univ, Dept Phys, Ahmadabad 380009, Gujarat, India

[2] Swami Ramanand Teerth Marathwada Univ, Sch Phys Sci, Nanded, Maharashtra, India

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2014年 / 193卷

关键词：

Complex permittivity; Relaxation time; Time Domain Reflectometry; CNLS fitting; Redlich-Kister equation; WATER MIXTURES; REFLECTION METHODS; FREQUENCY; ANISOLE; ETHANOL; ACID;

D O I：

10.1016/j.molliq.2013.12.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The complex permittivity spectra of binary liquid mixtures of ethylene glycol mono phenyl ether (EGMPE) with methanol (MeOH) were determined in frequency range of 10 MHz to 25 GHz using Time Domain Reflectometry (TDR) at four different temperatures 283.15, 288.15, 293.15 and 298.15 K through entire concentration range. The dielectric parameters viz static permittivity (epsilon), high frequency limit dielectric permittivity (epsilon(infinity)) and relaxation time (T) have been obtained by CNLS fit method. From the experimental data, parameters such as excess static permittivity (epsilon(E)), excess inverse relaxation time (1/T)(E), Kirkwood correlation factor (g(f)), effective Kirkwood correlation factor (g(eff)) and Bruggeman's factor (f(b)) and some thermo-dynamical parameters have been calculated. Excess parameters were fitted to the Redlich-Kister type polynomial equation. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：29 / 36

页数：8

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