High-pressure behavior of dielectric constant in a binary critical mixture

Physical Review. E
A Drozd-Rzoska, S J Rzoska

Abstract

An alternative design of the measurement capacitor for high-pressure studies of complex liquids or soft matter systems is presented. Subsequently, results for the precritical anomaly of dielectric constant in 1-nitropropane-octane critical mixture are reported. First, the pressure dependence of the critical consolute temperature T_{C} up to P=0.55GPa was determined and portrayed using the derivative-based analysis. Second, temperature and pressure evolutions of dielectric constant on approaching the critical consolute point at (T_{C}=304.1K and P_{C}=403MPa) were studied. They revealed that the pretransitional anomaly ɛ(P→P_{C}) is notably more pronounced than for ɛ(T→T_{C}). For both paths, the static domain extends even to as low frequency as f=100Hz, whereas for tests under atmospheric pressure, they require at least f=100kHz. The discussion of the impact of correction-to-scaling terms, including the unique case of the pressure paths, is also presented.

References

Sep 15, 1987·Physical Review A: General Physics·S J RzoskaJ Ziolo
Dec 12, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S J RzoskaJ Jadzyn
May 15, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S J RzoskaA Drozd-Rzoska
Dec 31, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Aleksandra Drozd-Rzoska
Jul 2, 2011·The Journal of Physical Chemistry. B·C E BertrandM A Anisimov
Dec 7, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Sylwester J Rzoska, Aleksandra Drozd-Rzoska
Jan 27, 2012·The Journal of Physical Chemistry. B·K OrzechowskiM Adamczyk
Nov 28, 2014·Physical Chemistry Chemical Physics : PCCP·Eva Zurek, Wojciech Grochala
Jun 17, 2016·The Journal of Chemical Physics·Aleksandra Drozd-Rzoska, Sylwester J Rzoska
Aug 25, 2019·The European Physical Journal. E, Soft Matter·Patricia Losada-Pérez
Aug 25, 2020·ACS Omega·Aleksandra Drozd-RzoskaJakub Kalabiński

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