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Updated: May 8, 2026

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper
Published on: October 4, 2019
On a different approach toward low-frequency dielectric spectroscopy measurements of conductive liquids
W H Hunter Woodward1, Andrew J Pasztor, Tirtha Chatterjee
1Analytical Sciences, The Dow Chemical Company, Midland, Michigan 48667, USA.
Abstract:
Driven by recent interest in the low-frequency Debye-like relaxations in hydrogen bonding liquids, here we present an alternative method for measuring such relaxations without the detrimental effects of ionic conductivity or electrode polarization. Glycerol was chosen as a molecule of interest, and a fit for the α-transition using the Vogel-Fulcher-Tammann equation was found to be τ = 2.31 × 10(-14) exp(2110 K∕[T-135 K]). This method is easily adaptable by most laboratories with existing dielectric spectrometers, and could prove useful in the accurate measurement of relaxations in conductive media at low frequencies. A brief summary of comparable techniques is also presented.
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