Chromatographic determination of the free energy of adsorption and absorption characteristic of 4-(trans-4′-n-alkylcyclohexyl) benzoates
Marcin Purchała , Henryk Grajek , Zygfryd Witkiewicz , Mateusz Szala , Kajetan Kalus
AbstractThe 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, γCH2, 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.
|Journal series||Journal of Chromatography A, ISSN 0021-9673, e-ISSN 1873-3778, (N/A 100 pkt)|
|Keywords in English||Liquid crystalline stationary phases, The free energy of adsorption and absorption (dissolution), Inverse gas chromatography|
|ASJC Classification||; ; ; ; ;|
|Score||= 100.0, 29-06-2020, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2018 = 1.167; : 2018 = 3.858 (2) - 2018=3.741 (5)|
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