Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Phase-Transitions in Langmuir-Blodgett and Cast Films of a Ferroelectric Liquid Crystal
Zi WENQing JIANGYiping DUYukihiro OZAKI
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2007 Volume 23 Issue 7 Pages 775-779

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Abstract

Langmuir-Blodgett films and cast films of a ferroelectric liquid crystal of sec-butyl-6-(4-(nonyloxy)benzoyloxy)-2-naphthoate have been fabricated. Their thermal behavior was investigated using infrared spectroscopy at elevated temperature combined with principal component analysis. The result shows a new phase transition from smectic A to nematic phase, compared to the phase sequence obtained by polarizing optical microscopy. Another solid transition of different isomeric crystals was also found, which was confirmed by calorimetric measurement.

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© 2007 by The Japan Society for Analytical Chemistry
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