Influence of 4-[(E)-(4′-Heptyloxyphenyl)diazenyl]phthalonitrile on the Properties of a Cyanobiphenyl Liquid Crystal Mixture

The mesomorphic properties of 4-[( E )-(4′-heptyloxyphenyl)diazenyl]phthalonitrile (7O-AB-CN 2 ) were studied by polarization microscopy and DSC method. Liquid crystalline phase formation was observed over a broad temperature range of 92 to 181°C. The influence of 7O-AB-CN 2 on the mesomorphic, diel...

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Veröffentlicht in:	Russian journal of general chemistry 2018-09, Vol.88 (9), p.1958-1962
Hauptverfasser:	Novikov, I. V., Tikhomirova, T. V., Aleksandriiskii, V. V., Burmistrov, V. A., Shaposhnikov, G. P., Koifman, O. I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Anisotropy Chemistry Chemistry and Materials Science Chemistry/Food Science Crystal structure Crystallinity Dielectric properties Liquid crystals Optical properties Polarity
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Zusammenfassung:	The mesomorphic properties of 4-[( E )-(4′-heptyloxyphenyl)diazenyl]phthalonitrile (7O-AB-CN 2 ) were studied by polarization microscopy and DSC method. Liquid crystalline phase formation was observed over a broad temperature range of 92 to 181°C. The influence of 7O-AB-CN 2 on the mesomorphic, dielectric, and optical properties of a liquid crystalline mixture of n-alkyloxycyanobiphenyls was examined. Enhancement of the dielectric anisotropy of the mesomorphic composition due to high polarity of 7O-AB-CN 2 and its effective inclusion into the liquid crystalline matrix was revealed.
ISSN:	1070-3632 1608-3350
DOI:	10.1134/S1070363218090360