Chromatographic determination of the free energy of adsorption and absorption characteristic of 4-(trans-4'-n-alkylcyclohexyl) benzoates.
Inverse gas chromatography
Liquid crystalline stationary phases
The free energy of adsorption and absorption (dissolution)
Journal
Journal of chromatography. A
ISSN: 1873-3778
Titre abrégé: J Chromatogr A
Pays: Netherlands
ID NLM: 9318488
Informations de publication
Date de publication:
05 Jul 2020
05 Jul 2020
Historique:
received:
21
02
2020
revised:
06
04
2020
accepted:
07
04
2020
pubmed:
30
4
2020
medline:
1
8
2020
entrez:
30
4
2020
Statut:
ppublish
Résumé
The characterisation of the energetic properties of liquid crystals, i.e., esters with elongated molecules has been performed. The changes of the free energies of adsorption and absorption (dissolutions), ΔG, for liquid crystals have been estimated, based on the retention times of the centre of gravity of the elution peaks determined for the substances with defined physicochemical properties. The temperature-dependent van der Waals component of the free energy, [Formula: see text] , for a crystalline form of liquid crystal has been estimated by employing the Dorris-Gray approach. These approaches have been widened to mesophases, namely, the absorption(dissolution) of n-alkanes in the smectic B and nematic phases.
Identifiants
pubmed: 32345440
pii: S0021-9673(20)30351-4
doi: 10.1016/j.chroma.2020.461120
pii:
doi:
Substances chimiques
Alkanes
0
Benzoates
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
461120Informations de copyright
Copyright © 2020. Published by Elsevier B.V.
Déclaration de conflit d'intérêts
Declaration of Competing Interest No potential conflict of interest was reported by the authors.