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Proceedings Paper

Charaterization of cyanobiphenyl-cyanoterphenyl mixtures in Langmuir films
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Paper Abstract

Results of the thermodynamic study of the molecular interaction in Langmuir films of mixtures of 4-n-octyl-4'- cyanobiphenyl (8CB) and 4-pentyl-4'-cyanoterphenyl (5CT) are presented. Both mixed materials are thermotropic liquid crystals and as a single component material is able to form a monolayer at the air-water interface. We demonstrate the effect of interaction of two similar liquid crystal molecules and how the surface pressure is affected by mixing the components in different mole fractions. The surface pressure-area isotherms indicate that 8CB and 5CT are immiscible in whole mole fraction range.

Paper Details

Date Published: 12 May 2000
PDF: 5 pages
Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); doi: 10.1117/12.385686
Show Author Affiliations
Tomasz Martynski, Poznan Univ. of Technology (Poland)
Danuta Bauman, Poznan Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 4147:
Liquid Crystals: Chemistry, Physics, and Applications
Stanislaw J. Klosowicz; Jolanta Rutkowska; Jerzy Zielinski; Jozef Zmija, Editor(s)

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