| Autor: |
Onuchak, L., Ukolova, D., Burmatnova, T., Kuraeva, Yu., Kuvshinova, S., Burmistrov, V., Stepanova, R. |
| Zdroj: |
Russian Journal of Physical Chemistry; Jan2015, Vol. 89 Issue 1, p129-135, 7p |
| Abstrakt: |
Thermodynamic characteristics of the sorption redistribution of hydrocarbons (C-C n-alkanes, CH terpenes, xylene isomers) and alcohols (C-C alkanols, butanediol-2,3, menthol) in a gas-4-(3-hydroxypropyloxy)-4′-formylazobenzene (HPOFAB) supramolecular smectic-nematic liquid crystal system are studied via inverse gas chromatography. The sorption capacity of HPOFAB with respect to nonmesogene sorbates is found to be strongly diminished due to its associated structure, especially in the smectic A phase. Great positive deviations from the Raoult law in the studied nonmesogene-HPOFAB systems are observed not only in mesophases, but also in the isotropic HPOFAB phase, which has a high selectivity to para- and meta-xylenes, in contrast to the isotropic phases of classic (non-associated) liquid crystals. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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