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À propos de : Effects of Dissolved Gas on the Hydrophobic Attractionbetween Surfactant-Coated Surfaces        

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  • Effects of Dissolved Gas on the Hydrophobic Attractionbetween Surfactant-Coated Surfaces
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  • The effect of dissolved gas on the hydrophobic attraction between double-chained surfactant monolayersphysisorbed on mica has been studied using a surface forces apparatus (SFA). Distance vs time data wereobtained over the full distance regime from D ≈ 1000 Å down to contact using the dynamic SFA method.Removal of dissolved gas was seen to reduce the range of the attraction while the short-range attraction(under ∼250 Å) remained unchanged. The implications for the possibility of two distinct force regimes inthe interactions between hydrophobic surfaces are discussed.
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