Author
Sylwester J. Rzoska
Other affiliations: University of Silesia in Katowice, Silesian University
Bio: Sylwester J. Rzoska is an academic researcher from Polish Academy of Sciences. The author has contributed to research in topics: Dielectric & Liquid crystal. The author has an hindex of 33, co-authored 216 publications receiving 3570 citations. Previous affiliations of Sylwester J. Rzoska include University of Silesia in Katowice & Silesian University.
Papers published on a yearly basis
Papers
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TL;DR: The evidence for long-range pretransitional effects in the liquid phase of ODIC-forming cycloctanol is presented in this article, which can be considered a potential base for the new generation of supercritical technologies, using ODIC forming liquids with properties controlled by the electric field.
7 citations
TL;DR: In this paper, the Vogel-Fulcher-Tammann evolution of relaxation times and the broadening of loss curves on cooling were studied in a pressurized isopentylcyanobiphenyl.
Abstract: Results are presented of linear and non-linear dielectric studies in pressurized isopentylcyanobiphenyl (5 ∗ CB). Temperature studies of linear dielectric relaxation in 5 ∗ CB showed the Vogel–Fulcher–Tammann evolution of relaxation times and the broadening of loss curves on cooling [J. Chem. Soc. Farad. Trans. 94 (1998) 387; Phys. Chem. Chem. Phys. 1 (1999) 4843]. The behavior characteristic for glassy liquids was also found in the presented preliminary tests of dielectric relaxation in pressurized 5 ∗ CB. For pressure dependencies for maxima of loss curves and for the static dielectric permittivity additional pretransitional anomalies was found. They may be associated with premesomorphic fluctuation (inhomogeneities) in the isotropic (fluid-like) surrounding. The stationary response of strong electric field induced changes of dielectric permittivity (NDE) also exhibited a singular behavior. It was found that NDE decreased strongly towards negative values on pressuring. This is a novel behavior which can be hardly explained by classic models developed for normal liquids [Dielectric Physics, PWN–Elsevier, Warsaw, 1980 and 1993].
6 citations
TL;DR: In this article, the broadband dielectric spectroscopy method was used for the first time to study the kinetics of gelation in ceramic processing, and the results indicated the catalytic influence of metal on the polymerisation.
6 citations
TL;DR: In this article, the pretransitional effect in the isotropic phase in the vicinity of the nematic, smectic and blue phases has been studied by means of the Nonlinear Dielectric Effect.
Abstract: The pretransitional effect in the isotropic phase in the vicinity of the nematic, smectic and blue phase has been studied by means of the Nonlinear Dielectric Effect As a research method the NDE is complementary to the light scattering, Kerr and Cotton - Mouton effects
6 citations
6 citations
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TL;DR: In this paper, the critical behavior of spin systems at equilibrium is studied in three and two dimensions, and the results in three-dimensional space are presented in particular for the six-loop perturbative series for the β -functions.
1,363 citations
TL;DR: This work identifies the class of secondary relaxations that bears a strong connection or correlation to the primary relaxation in all the dynamic properties and proposes that only these should be called the Johari-Goldstein beta-relaxation.
Abstract: Dynamic properties, derived from dielectric relaxation spectra of glass-formers at variable temperature and pressure, are used to characterize and classify any resolved or unresolved secondary relaxation based on their different behaviors. The dynamic properties of the secondary relaxation used include: (1) the pressure and temperature dependences; (2) the separation between its relaxation time τβ and the primary relaxation time τα at any chosen τα; (3) whether τβ is approximately equal to the independent (primitive) relaxation time τ0 of the coupling model; (4) whether both τβ and τ0 have the same pressure and temperature dependences; (5) whether it is responsible for the “excess wing” of the primary relaxation observed in some glass-formers; (6) how the excess wing changes on aging, blending with another miscible glass-former, or increasing the molecular weight of the glass-former; (7) the change of temperature dependence of its dielectric strength Δeβ and τβ across the glass transition temperature Tg; ...
715 citations
TL;DR: In this paper, a review of the mechanisms underlying the relaxation properties of glass-forming liquids and polymers is provided, with an emphasis in the insight provided into the mechanism underlying the glass relaxation properties.
Abstract: An intriguing problem in condensed matter physics is understanding the glass transition, in particular the dynamics in the equilibrium liquid close to vitrification Recent advances have been made by using hydrostatic pressure as an experimental variable These results are reviewed, with an emphasis in the insight provided into the mechanisms underlying the relaxation properties of glass-forming liquids and polymers
638 citations
TL;DR: Although differential scanning calorimetry is the most widely used thermal analytical technique applied to the characterization of amorphous solid dispersions, there are many established and emerging techniques which have been shown to provide useful information.
399 citations
345 citations