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Article
Dielectric Properties of Mixtures of a Bent-Core and a Calamitic Liquid Crystal
Physical Review E
  • Peter Salamon
  • Nandor Éber
  • Agnes Buka
  • Jim T. Gleeson, Kent State University - Kent Campus
  • Samuel N. Sprunt, Kent State University - Kent Campus
  • Antal Jakli, Kent State University - Kent Campus
Publication Date
3-24-2010
Document Type
Article
DOI
10.1103/PhysRevE.81.031711
Keywords
  • nematic phase,
  • smectic-a,
  • relaxation,
  • spectroscopy,
  • viscosity,
  • molecules,
  • dimers
Disciplines
Abstract
Dielectric spectroscopy measurements have been performed on a bent-core nematic liquid crystal and on its binary mixtures with a calamitic nematic. We have detected more dispersions in the bent-core compound than in the calamitic one, including one at an unusually low frequency of a few kilohertz. The dispersions detected in the mixtures have been identified and the spectra have been split into contributions of the constituents. In order to connect the dielectric increment with the molecular dipole moment we have applied a sophisticated conformational calculation not performed before for a large, flexible mesogen molecule with numerous polar groups.
Comments

Copyright 2010 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.81.031711

Citation Information
Peter Salamon, Nandor Éber, Agnes Buka, Jim T. Gleeson, et al.. "Dielectric Properties of Mixtures of a Bent-Core and a Calamitic Liquid Crystal" Physical Review E Vol. 81 Iss. 3 (2010)
Available at: http://works.bepress.com/antal_jakli/62/