2 August 1995 Orientational order in nematic phases determined from polarized optical spectroscopy
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Proceedings Volume 2372, Liquid Crystals: Materials Science and Applications; (1995) https://doi.org/10.1117/12.215529
Event: Liquid Crystals: Materials Science and Applications, 1994, Zakopane, Poland
Abstract
The orientational order of some nematogenic low molecular liquid crystals and three polymers with mesogenic side groups has been studied using 'guest-host' effect. The polarized absorption and fluorescence spectra of the fluorescent guest probe oriented in the liquid crystalline matrices have been measured as a function of the temperature in the nematic phase. From the experimental data, the order parameters <P2> and <P4> as well as the molecular distribution function have been determined. The small differences between the molecular orientation in the low molecular liquid crystals and the side chain polymers have been observed. It has been also found that the orientational order depends strongly on the molecular structure of the mesogenic molecules.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Danuta Bauman, Danuta Bauman, } "Orientational order in nematic phases determined from polarized optical spectroscopy", Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); doi: 10.1117/12.215529; https://doi.org/10.1117/12.215529
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