Thermotropic phase transition in an adsorbed melissic acid film at the n-hexane-water interface

被引:3
|
作者
Tikhonov, A. M. [1 ]
机构
[1] Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia
关键词
X-RAY-SCATTERING; CHAIN MOLECULES; VAPOR INTERFACE; SURFACE; FLUOROALKANOL; REFLECTIVITY; IONS; FLUCTUATIONS; MONOLAYERS; MIXTURE;
D O I
10.1134/S002136401712013X
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A reversible thermotropic phase transition in an adsorption melissic acid film at the interface between n-hexane and an aqueous solution of potassium hydroxide (pH ae 10) is investigated by X-ray reflectometry and diffuse scattering using synchrotron radiation. The experimental data indicate that the interface "freezing" transition is accompanied not only by the crystallization of the Gibbs monolayer but also by the formation of a planar smectic structure in the similar to 300--thick adsorption film; this structure is formed by similar to 50--thick layers.
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页码:775 / 781
页数:7
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