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Liquid Crystals

  • L. A. Shuvalov
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 37)

Abstract

The liquid-crystal (mesomorphous) state inherent in some organic substances consisting of elongated molecules (Fig. 8.1) is characterized by parallel stacking of such molecules, i.e., by a long-range orientation order [8.1, 8.2]. The corresponding thermodynamic phase has a definite region of its own in the phase diagram. Some substances can form not one, but several liquid-crystal phases differing in structure [2.5]. As regards their macroscopic rheological properties, liquid crystals occupy an intermediate position between true solid crystals and true (isotropic) liquids: they are fluid, but anisotropic. The viscosity of liquid crystals ranges from that of water to that of a thick oil. “Vitrified” liquid crystals resulting from supercooling are also known. The anisotropy of liquid crystals manifests itself in a number of their properties: optical, electrical, magnetic, etc. [8.1–8.15].

Keywords

Liquid Crystal Nematic Liquid Crystal Nematic Phase Cholesteric Liquid Crystal Smectic Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin, Heidelberg 1988

Authors and Affiliations

  • L. A. Shuvalov
    • 1
  1. 1.Institute of CrystallographyAcademy of Sciences of the USSRMoscowUSSR

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