Observation of a two-step mechanism in the formation of a superstructure of cadmium-behenic acid Langmuir monolayer: evidence of an intermediate structure.
Phys Rev E Stat Nonlin Soft Matter Phys
; 70(5 Pt 1): 050601, 2004 Nov.
Article
en En
| MEDLINE
| ID: mdl-15600579
ABSTRACT
By means of grazing incidence x-ray diffraction, the structure of a behenic acid monolayer spread over chloride salt solutions of cadmium is observed to evolve from the tilted L2 phase to the superstructure (corresponding to an organized monolayer of ions in addition to the ordered organic film), through an intermediate phase. The studied salt concentrations are below the so-called "threshold" needed for the formation of this superstructure. This kinetic process involving two first-order phase transitions is confirmed by Brewster angle microscopy experiments and surface pressure-area isotherms measured at different times after monolayer deposition.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Asunto de la revista:
BIOFISICA
/
FISIOLOGIA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Francia