Polymolecular Adsorption of Water Vapor on Freshly Cleaved Mica and Electrical Surface Conductivity

Extraordinarily Thick Water Films on Hydrophilic Solids: A Result of Hydrophobic Repulsion?

“…It should be noticed that the mechanism of enhanced interaction by variation of a hydrogen bonding excess should depend on temperature. Such an effect has been observed in ref . There, very thick water films on mica have been observed at 21 °C.…”

“…[1][2][3][4][5][6][7][8][9] In such experiments the surface of the substrate is in equilibrium with the water vapor of pressure p smaller than the saturation pressure p 0 . The undersaturation of the vapor exerts a suction pressure P s ) (kT/ν m ) ln(p/p 0 ) on the film.…”

“…In the investigation of multilayer adsorption of water on hydrophilic substrates, water films have been observed that are much thicker than those expected from DLVO theory. − In such experiments the surface of the substrate is in equilibrium with the water vapor of pressure p smaller than the saturation pressure p 0 . The undersaturation of the vapor exerts a suction pressure P s = ( kT /ν m ) ln( p / p 0 ) on the film.…”

Physical principles of the theory concerning polymolecular adsorption films and capillary condensation of polar liquids

“…An analysis of (25) shows that, under certain conditions (for example, for the adsorption of polar molecules), the right-hand side of Eq. (25) becomes zero at a finite thickness h 0 of the adsorption film, which has been confirmed experimentally by several authors [3,12,13]. For this condition of equilibrium between a polymolecular adsorption film and its saturated vapor (saturated relative to the bulk liquid) Ps is determined from (25)…”