Dielectric and Conductivity Anisotropy in Liquid Crystalline Phases of Strongly Polar Thioesters

• Authors: A. Mikułko , M. Fraś , M. Marzec , S. Wróbel , M. Ossowska-Chruściel , J. Chruściel
• Languages of publication: EN

Abstracts

EN

The main objective of this paper is to study dielectric properties of two compounds of acronyms 5OSCl and 6OSCl having strongly polar bond (C-Cl) at para position. Dielectric measurements were done in the frequency range from 40 Hz to 15 MHz. The dielectric spectra were measured for two principal alignments. For homeotropic alignment, the reorientation of molecule around the short molecular axis was observed. Both substances studied exhibit large positive dielectric anisotropy and the anisotropy of conductivity was obtained in smectic A as well as nematic phase.

Keywords

EN

61.30.-v; 61.30.Eb; 77.22.-d; 66.10.Ed

Discipline

• 61.30.Eb: Experimental determinations of smectic, nematic, cholesteric, and other structures
• 77.22.-d: Dielectric properties of solids and liquids(for dielectric properties of tissues and organs, see 87.19.rf)
• 66.10.Ed: Ionic conduction
• 61.30.-v: Liquid crystals(for phase transitions in liquid crystals, see 64.70.M-; for liquid crystals as dielectric materials, see 77.84.Nh; for liquid crystals as optical materials, see 42.70.Df; for liquid crystal devices, see 42.79.Kr)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 4
• Pages: 1155-1160

Dates

published

2008-04

received

2007-06-03

Contributors

author

A. Mikułko

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

M. Fraś

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

M. Marzec

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

S. Wróbel

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

M. Ossowska-Chruściel

• Institute of Chemistry, University of Podlasie, 3-go Maja 54, 08-110 Siedlce, Poland

author

J. Chruściel

• Institute of Chemistry, University of Podlasie, 3-go Maja 54, 08-110 Siedlce, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.113.1155