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Heterogeneous equilibria and the kinetics of isotropic liquid-nematic phase transition in a multicomponent mixture 4-alkyl-4′-cyanobiphenyls

  • Chemical Thermodynamics and Thermochemistry
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Abstract

The isotropic liquid-nematic phase transition and the kinetics of growth of nematic phase drops during this phase transition were studied by polarization optical microscopy and IR spectroscopy for a four-component system during cooling. The statistical drop size distribution was described in terms of the equilibrium thermodynamics of irreversible processes. An analysis of the time dependences of the mean diameter of drops showed the presence of two kinetic stages of nematic phase growth and allowed them to be described by the universal law of cluster growth. In conformity with the Gibbs phase rule, nematic phases with different compositions can coexist at equilibrium.

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Authors and Affiliations

  1. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia

    S. V. Kostromin, S. V. Bronnikov & V. V. Zuev

Authors
  1. S. V. Kostromin
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  2. S. V. Bronnikov
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  3. V. V. Zuev
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Correspondence to V. V. Zuev.

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Original Russian Text © S.V. Kostromin, S.V. Bronnikov, V.V. Zuev, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 10, pp. 1872–1876.

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Kostromin, S.V., Bronnikov, S.V. & Zuev, V.V. Heterogeneous equilibria and the kinetics of isotropic liquid-nematic phase transition in a multicomponent mixture 4-alkyl-4′-cyanobiphenyls. Russ. J. Phys. Chem. 83, 1689–1693 (2009). https://doi.org/10.1134/S0036024409100100

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  • DOI: https://doi.org/10.1134/S0036024409100100

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