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Liquid Crystals and their Application
Russian Journal Zhidkie kristally i ikh prakticheskoe ispol'zovanie Жидкие кристаллы и их практическое использование |
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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2010, 4, 22—29. |
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Correlation Ratios for Activity Coefficients of Liquid Crystalline Solutions of Cholesteroltridecylate at Limit Dilution and Finite Concentrations
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S. V. Blokhina, M. V. Ol'khovich, A. V. Sharapova
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Author affiliations
Institute of Solution Chemistry, Russian Academy of Sciences
153045 Ivanovo,
Akademicheskaya Str., 1.
E-mail: svb@isc-ras.ru
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Abstract
Activity coefficients of isomeric butanols at limit dilution in the smectic, cholesteric, and isotropic phases of cholesterol tridecylate have been determined by inverted gas chromatography (IGC). Experimental parameters corresponding to the equilibrium and bulk process of sorption–desorption have been found. The said coefficients determined in the binary systems containing cholesterol tridecylate are stated to correlate well with the ones determined by tensimetry. IGC is shown to be a valid technique to study the smectic and cholesteric phases of liquid crystals.
Keywords: inverse gas chromatography, tensimetry, cholesterol tridecylate, activity coefficients
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