Optical Order Parameter of Dichroic Azo-Dyes in Liquid Crystalline Side-Chain Polysiloxanes

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

Abstracts

EN

Polarized light absorption spectra of seven dichroic azo-dyes dissolved in mesogenic side-chain polysiloxanes were recorded as a function of temperature. On the basis of the spectra the optical order parameter of the dyes was determined. The influence of the dye on the phase transition temperatures of polysiloxanes was examined. The results obtained for polysiloxanes were compared with the data for low molecular weight liquid crystal.

Keywords

EN

61.41.+e; 61.30.Gd; 64.70.Md

Discipline

• 61.41.+e: Polymers, elastomers, and plastics(see also 81.05.Lg in materials science; for rheology of polymers, see section 83; for polymer reactions and polymerization, see 82.35.-x in physical chemistry and chemical physics)
• 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 102
• Issue: 6
• Pages: 767-780

Dates

published

2002-12

received

2002-06-06

(unknown)

2002-09-11

Contributors

author

E. Chrzumnicka

• Faculty of Technical Physics, Poznań University of Technology, Nieszawska 13A, 60-965 Poznań, Poland

author

D. Bauman

• Faculty of Technical Physics, Poznań University of Technology, Nieszawska 13A, 60-965 Poznań, Poland

author

J. Jadżyn

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.102.767