APPLICATION OF THE HANSEN SOLUBILITY PARAMETER FOR MODELLING OF LIQUID CRYSTAL - SOLVENT SYSTEMS

被引：1
|
作者：
Pestov, S. M. [1 ]
Yaghoubpour, S. [1 ]
机构：
[1] Moscow Technol Univ, Inst Fine Chem Technol, Dept Phys Chem, 86 Vernadskogo Pr, Moscow 119571, Russia
来源：
LIQUID CRYSTALS AND THEIR APPLICATION | 2018年 / 18卷 / 02期
关键词：
liquid crystals; phenylbenzoates; alkyloxybenzyliden-toluidenes; phase diagrams; solubility; the Hansen solubility parameter; distance; Teas triangle;
D O I：
10.18083/LCAppl.2018.2.95
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
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. Express-schemes (Teas triangle, distance) for selection of solvent to purify mesogens were proposed.
引用
收藏
页码：95 / 102
页数：8
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