Application of the Hansen Solubility Parameter for Modelling of Liquid Crystal – Solvent Systemsстатья
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 мая 2019 г.
Аннотация:Systems of nematic (smectic-nematic) liquid crystalline p-butyloxyphenyl p'-n-alkyloxybenzoates (n-alkyl = hexyl, heptyl, nonyl, decyl) and p-n-alkyloxybenzyliden-p'-toluidenes (n-alkyl = butyl, hexyl, nonyl) with solvents of different classes were studied. Systems were investigated by thermal analysis, polarizing microscopy, visual polythermal and solubility methods. Solubilities of liquid crystals in solvents at 298 K were obtained. Thermodynamic methods based on the Hansen solubility parameters were used to predict the phase diagram type. Group-contribution scheme to calculate the Hansen solubility parameters of liquid crystals was used. Expressschemes (Teas triangle, distance) for selection of solvent to purify mesogens were proposed