Mesomorphism and Dielectric Properties of Phenyl 4 -Alkylbiphenyl-4′ -Carboxylates and Phenyl 4 (4-Alkylphenyl) cyclohexanecarboxylates

doi:10.1080/15421407608084343

Paper

Mesomorphism and Dielectric Properties of Phenyl 4 -Alkylbiphenyl-4′ -Carboxylates and Phenyl 4 (4-Alkylphenyl) cyclohexanecarboxylates

Published 1976 · L. Karamysheva, E. I. Kovshev, M. I. Barnik

Molecular Crystals and Liquid Crystals

Q4 SJR score

21

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0

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Abstract

Abstract 4-Alkylbiphenyl-4′-carboxylic and trans-4(4-alkylphenyl)cyclohexanecarboxylic acids have been synthesized. Their p-cyanophenyl esters formed only nematic mesophase in a wide temperature range, and p-hexyloxyphenyl esters-both smectic and nematic mesophases. The replacement of the benzene ring in carboxylic part of molecule by the 1,4-disubstituted transcyclohexane ring leads to decrease of nematic thermal stability and all dielectric constants.

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Phenyl 4-Alkylbiphenyl-4′-carboxylic and trans-4(4-alkylphenyl)cyclohexanecarboxylic acids show nematic mesophase formation and decreased dielectric constants when replacing the benzene ring

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Mesomorphism and Dielectric Properties of Phenyl 4 -Alkylbiphenyl-4′ -Carboxylates and Phenyl 4 (4-Alkylphenyl) cyclohexanecarboxylates

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References

Properties of the Liquid Crystals Formed by some 4′, 4″- Disubstituted Phenyl Biphenyl-4-carboxylates

These 4′, 4′′-disubstituted phenyl biphenyl-4-carboxylates show potential for low melting eutectic compositions with wide nematic ranges, potentially benefiting electro-optical displays like twisted nematic types.

The Dielectric Properties of Nematic 44′ n-pentylcyanobiphenyI

Nematic 44′ n-pentylcyanobiphenyl exhibits a dispersion region in e at about 5 MHz, with a mean permittivity of in the non-aligned state.

Citations