Liquid crystalline binary mixtures at the air-water interface

被引:1
|
作者
Martynski, T [1 ]
机构
[1] Poznan Tech Univ, Fac Tech Phys, PL-60965 Poznan, Poland
关键词
Langmuir film; liquid crystal; miscibility; monolayer; binary mixture;
D O I
10.1016/S0927-7757(01)00930-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The interaction behaviour of the binary mixtures composed of the liquid crystals 4-octyl-4'-cyanobiphenyl (8CB) and 4-pentyl-4'-cyanoterphenyl (5CT) as well as biphenyl (BP) and terphenyl (TP) at different molar ratios has been studied using Langmuir technique. The surface pressure-mean molecular area isotherms have been recorded. The miscibility of the components in Langmuir films has been determined by using the additivity rule and collapse surface pressure criterion. It has been found, that 8CB is partially miscible with BP and TP. 5CT is miscible with TP, whereas the mixtures of two liquid crystals, 8CB and 5CT reveal the phase separation over a whole range of composition. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:179 / 185
页数:7
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