Результаты исследований: Научные публикации в периодических изданиях › статья
Phase Diagram and Dielectric Studies in Hydrogen-Bonded Liquid Crystal System. / Efremova, E. I.; Kydryashova, Z. A.; Nosikova, L. A.; Kovshik, A. P.; Dobrun, L. A.; Melnikov, A. B.
в: Molecular Crystals and Liquid Crystals, Том 626, № 1, 2016, стр. 12-20.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Phase Diagram and Dielectric Studies in Hydrogen-Bonded Liquid Crystal System
AU - Efremova, E. I.
AU - Kydryashova, Z. A.
AU - Nosikova, L. A.
AU - Kovshik, A. P.
AU - Dobrun, L. A.
AU - Melnikov, A. B.
PY - 2016
Y1 - 2016
N2 - The thermal and dielectric behaviors of mixtures were investigated for systems of p-n-hexyloxybenzoic acid (6OBA) and p-n-octyloxybenzoic acid (8OBA) by differential scanning calorimetry, polarized optical microscopy, and dielectric measurements. The T-X phase diagram was obtained for this system. Eutectic composition was calculated and received experimentally. Enthalpies of mixing were calculated to describe phase transitions physically. All mixtures show enantiotropic smectic and nematic phases. Dielectric permittivity has higher value for the mixture with fractional proportion of 30 to 70% mol for 8OBA than that for initial acid. It is assumed that co-crystallization of initial compound occurs when the ratio of components is close to equimolar ratio.
AB - The thermal and dielectric behaviors of mixtures were investigated for systems of p-n-hexyloxybenzoic acid (6OBA) and p-n-octyloxybenzoic acid (8OBA) by differential scanning calorimetry, polarized optical microscopy, and dielectric measurements. The T-X phase diagram was obtained for this system. Eutectic composition was calculated and received experimentally. Enthalpies of mixing were calculated to describe phase transitions physically. All mixtures show enantiotropic smectic and nematic phases. Dielectric permittivity has higher value for the mixture with fractional proportion of 30 to 70% mol for 8OBA than that for initial acid. It is assumed that co-crystallization of initial compound occurs when the ratio of components is close to equimolar ratio.
U2 - DOI:10.1080/15421406.2015.1106220
DO - DOI:10.1080/15421406.2015.1106220
M3 - Article
VL - 626
SP - 12
EP - 20
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
IS - 1
ER -
ID: 7548861