Abstract
When a liquid is subjected to high electric field, its volume change (ΔV) can be increased or decreased depending upon the liquid under investigation. A new technique has been developed from our laboratory to measure the relative volume change per E2 and is known as “Electrodilatometry (ED)” which may be expressed as:
, where R is known as “Electrodilatometric Effect (EDE)”, V and V0 are the volume of liquid with and without the field, respectively. ED is one of the nonlinear effects such as electro-optic Kerr effect, the electrostriction, dielectrophoresis, nonlinear dielectric effect (NDE). Ed is found to be very sensitive to hydrogen-bonded liquids. It has been applied to study pure liquids, binary mixtures, alcohols, and non-ionic surfactants such as Triton X-100. The signs of EDE (R), Kerr constant (B) and NDE (Δε/F2) are compared and contrasted. A few models have been used to calculate R with limited success. Not only can ED be used with smaller molecules but it should also be a potential tool to study polymer solutions and supramolecular assemblies.
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Rappon, M., Johns, R.M., Lin, SW. (2004). Electrodilatometry of Liquids, Binary Liquids, and Surfactants. In: Rzoska, S.J., Zhelezny, V.P. (eds) Nonlinear Dielectric Phenomena in Complex Liquids. NATO Science Series II: Mathematics, Physics and Chemistry, vol 157. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2704-4_34
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DOI: https://doi.org/10.1007/1-4020-2704-4_34
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