Critical and wetting transitional adsorption behaviour in a liquid system against vapour and other walls - Université de Bretagne Occidentale Access content directly
Journal Articles Journal of Physics: Condensed Matter Year : 2001

Critical and wetting transitional adsorption behaviour in a liquid system against vapour and other walls

J.P. Huruguen
  • Function : Author
Mohamed Amara
A.M. Méar
  • Function : Author
H. Hamraoui
  • Function : Author
R. Olier
  • Function : Author

Abstract

The adsorption of 2, 5 DMP (2, 5-dimethylpyridine) at the free surface of water (1)-2, 5 DMP (2) liquid mixtures was determined from surface tension and activity measurements. Two divergences were found: the former was observed at Tc for the critical isochore and the 2, 5 DMP-rich γ-phase which, at coexistence, completely wets the surface at Tc, whereas the latter was noticed at Tw for the water-rich β-phase. These results were compared with those found under similar conditions for the same liquid system with silica as the wall; this comparison is quite fruitful because, with silica, the preferentially wetting phase is the β-phase.
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Dates and versions

hal-01770134 , version 1 (18-04-2018)

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J.P. Huruguen, Mohamed Amara, A.M. Méar, H. Hamraoui, R. Olier, et al.. Critical and wetting transitional adsorption behaviour in a liquid system against vapour and other walls. Journal of Physics: Condensed Matter, 2001, 13 (21), pp.4939-4956. ⟨10.1088/0953-8984/13/21/320⟩. ⟨hal-01770134⟩
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