Guest Effect on Nematic-Isotropic Phase Transition Temperature of Liquid Crystal 6CHBT

• Authors: D. Bauman , J. Solczyński , E. Chrzumnicka
• Languages of publication: EN

Abstracts

EN

The polarized absorption spectra of seven dichroic azo dyes dissolved in the nematogenic liquid crystal host 6CHBT have been recorded as a function of temperature. On the basis of these spectra, the guest order parameter has been determined. Moreover, the influence of the dye addition on the behaviour of the guest-host mixture in the vicinity of the nematic- isotropic phase transition has been examined. The experimental results have been compared in some details with the calculations done on the basis of the mean field theory for binary mixtures.

Keywords

EN

61.30.Gd; 64.70.Md

Discipline

• 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order

• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 6
• Pages: 1151-1161

Dates

published

1997-12

received

1997-05-13

(unknown)

1997-08-01

Contributors

author

D. Bauman

• Institute of Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

J. Solczyński

• Institute of Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

E. Chrzumnicka

• Institute of Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

Identifiers

DOI

10.12693/APhysPolA.92.1151