Dear authors and readers!
We are pleased to inform that the journal Liquid Crystals and their Application is included in Web of Science (Emerging Sources Citation Index) and Scopus (Q3) databases.
Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2017, 17 (4), 49—59. DOI: 10.18083/LCAppl.2017.4.49
Sorption and Selective Properties of the "Supramolecular Liquid Crystal – Acetyltosilized β-Cyclodextrin" Binary Sorbent in Gas Chromatography Conditions
D. A. Tugareva, L. A. Onuchak, Yu. G. Kuraeva, T. S. Kapralova
Author affiliations Samara National Research University,
34 Moskovskoye shosse, Samara, 443086, Russia E-mail: email@example.com
Abstract The mesomorphic and sorption properties of a binary system containing a supramolecular smectic-nematic liquid crystal 4-(3-hydroxypropyloxy)-4'-formylazobenzene (HPOFAB) and 10 wt.%-additive of heptakis-(2,3-di-O-acetyl-6-O-tosyl)-β-cyclodextrin (Ac-Ts-β-CD) were investigated. It was established that the introduction of chiral macrocyclic compound Ac-Ts-β-CD does not change the type of mesophase (SA, N) in HPOFAB, but leads to distortion of the texture due to pronounced «LC – macrocycle» solvation. The thermodynamic sorption characteristics from the gas phase of 25 non-mesogenic sorbates (hydrocarbons and alcohols with acyclic and cyclic structure) were studied by reversed gas-liquid chromatography. It was established that, due to solvation, the binding of molecules of sorbates to a macrocycle is due to inclusive complexation, which is more pronounced for hydrocarbons. The binary system studied has a high selectivity to para- and meta-xylenes (αп/м = 1,18, T = 110 °С) and a moderate enantioselectivity with respect to isomers of camphene and butanediol-2,3.