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Interfacial tension of some liquid crystals in the cyanobiphenyl series at the interface with glycerol

T. BEICA1,* , R. MOLDOVAN2, I. ZGURA1, S. FRUNZA1

Affiliation

  1. National Institute of Materials Physics, Magurele, PO Box Mg-07, R-077125, Romania
  2. Romanian Academy Centre for Advanced Studies in Physics, Calea 13 Septembrie no.13, Bucharest

Abstract

The temperature dependence of the interfacial tension for three compounds from the homologous series of alkylcyanobiphenyl (nCB), 5CB, 7CB and 8CB, at the interface with glycerol was measured in a temperature range from mesomorphic to isotropic phase. The drop shape method of measure was used. The interfacial tension of all the studied liquid crystals presents an anomalous behaviour with maximum and small upward jumps at the phase transitions, in rising temperature..

Keywords

Liquid crystals, Interfacial tension, Measurements.

Submitted at: Aug. 28, 2007
Accepted at: Nov. 16, 2007

Citation

T. BEICA, R. MOLDOVAN, I. ZGURA, S. FRUNZA, Interfacial tension of some liquid crystals in the cyanobiphenyl series at the interface with glycerol, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3624-3627 (2007)