New highly anisotropic liquid crystal materials for high-frequency applications
V Lapanik, G Sasnouski, S Timofeev, E Shepeleva… - Liquid …, 2018 - Taylor & Francis
We report on the developed liquid crystal (LC) compositions with large optical anisotropy
and low melting point on the basis of synthesised quaterphenyl and quinquiphenyl LC …
and low melting point on the basis of synthesised quaterphenyl and quinquiphenyl LC …
Low aberration and fast switching microlenses based on a novel liquid crystal mixture
JF Algorri, N Bennis, J Herman, P Kula, V Urruchi… - Optics …, 2017 - opg.optica.org
In this work, we present a novel kind of LC mixture (5005) for photonic applications, with
emphasis on a LC microlens array. This mixture is a nematic composition of three different …
emphasis on a LC microlens array. This mixture is a nematic composition of three different …
Novel high birefringent isothiocyanates based on quaterphenyl and phenylethynyltolane molecular cores
J Herman, J Dziaduszek, R Dąbrowski… - Liquid …, 2013 - Taylor & Francis
We report the synthesis of new laterally alkyl substituted high birefringent quaterphenyl and
phenylethynyltolane liquid crystals with isothiocyanate terminal group. The thermal and …
phenylethynyltolane liquid crystals with isothiocyanate terminal group. The thermal and …
Synthesis and properties of chosen 4-butyl-phenyltolane derivatives–on the influence of core substitution on birefringence, mesomorphic and dielectric properties
J Herman, P Harmata, O Strzeżysz… - Journal of Molecular …, 2018 - Elsevier
The synthesis and characterization of new liquid crystal (LC) compounds based on 4-[(4-
butyl-2, 6-difluorophenyl) ethynyl] biphenyl core are described. New family of dielectrically …
butyl-2, 6-difluorophenyl) ethynyl] biphenyl core are described. New family of dielectrically …
Synthesis of new wide nematic diaryl-diacetylenes containing thiophene-based heteromonocyclic and heterobicyclic structures, and their birefringence properties
New monocyclic and bicyclic thiophene-based diaryl-diacetylene liquid crystal (LC)
materials were synthesised and demonstrated to exhibit wide enantiotropic nematic phases …
materials were synthesised and demonstrated to exhibit wide enantiotropic nematic phases …
The effect of lateral fluorination on the properties of phenyl-tolane liquid crystals
J Li, X Yang, N Gan, B Wu, Z An - Liquid Crystals, 2015 - Taylor & Francis
Multifluorinated phenyl-tolane liquid crystals were synthesised by two steps cross-coupling
reactions, and their structures were confirmed by nuclear magnetic resonance (NMR), mass …
reactions, and their structures were confirmed by nuclear magnetic resonance (NMR), mass …
Synthesis and mesomorphic properties of laterally substituted 4, 4′′′-dialkyl-p-quaterphenyls
Over 20 laterally substituted, mainly by fluorine and other more bulky substituents like
chlorine and methyl group, 4, 4′′′-dialkyl-p-quaterphenyls have been synthesised and …
chlorine and methyl group, 4, 4′′′-dialkyl-p-quaterphenyls have been synthesised and …
The influence of the dialkylphenyltolane's difluorosubstitution on mesomorphic and dielectric properties
M Pytlarczyk, J Herman, P Harmata, S Urban… - Liquid …, 2018 - Taylor & Francis
The synthesis of variously difluoro-substituted 4-butyl-4ʹ-[2-(4-butylphenyl) ethynyl]-1, 1ʹ-
biphenyls is presented and discussed. Molecular correlations between positions of fluorine …
biphenyls is presented and discussed. Molecular correlations between positions of fluorine …
Effect of lateral substitution by chlorine and fluorine atoms of 4-alkyl-p-terphenyls on mesomorphic behaviour
M Pytlarczyk, E Dmochowska, M Czerwiński… - Journal of Molecular …, 2019 - Elsevier
The effect of halogen substitution on thermotropic liquid crystalline materials has a
significant impact on many physical and chemical properties. Replacement of hydrogen …
significant impact on many physical and chemical properties. Replacement of hydrogen …