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  • Title: Novel biaxial nematic phases of side-chain liquid crystalline polymers.
    Author: Matsuyama A.
    Journal: J Chem Phys; 2012 Dec 14; 137(22):224906. PubMed ID: 23249031.
    Abstract:
    We present a mean field theory to describe biaxial nematic phases of side-chain liquid crystalline polymers, in which rigid side-chains (mesogens) and rigid-backbone chains favor mutually perpendicular orientations. Taking into account both excluded volume and attractive interactions between rigid rods, novel biaxial nematic phases are theoretically predicted. We calculate uniaxial and biaxial orientational order parameters as a function of temperature and the length of backbone chains. We find a first-order biaxial-biaxial phase transition and a first (or second)-order uniaxial-biaxial one, depending on the length of mesogens and backbone chains.
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