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Issue
Korean Journal of Chemical Engineering,
Vol.23, No.5, 699-703, 2006
Diffusion-controlled adsorption kinetics of aqueous submicellar and micellar solution at air/solution interface in the limit of short time
Liu J, Zhang Y
The equilibrium surface tensions γeq of aqueous Pentaethylenglycol-monododecylether (C12E5) solutions at temperature 25 ℃ were measured by means of Wilhelmy plate method and the determined critical micelle concentration (cmc) is 6.8×10.2 mol·m.3. To study adsorption kinetics of aqueous submicellar and micellar solutions, the dynamic surface tensions γ(t) were measured by means of maximal bubble pressure method. Using the derived equations of adsorption kinetics for submicellar and micellar solutions, the experimental data were analyzed and the adsorption kinetics was studied. For micellar solution (c0>cmc) of C12E5, the demicellization constant k was calculated.
Keywords: Adsorption; Diffusion; Surface Tension; Demicellization Constant; Critical Micelle Concentration
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[Cited By]
  1. Rub MA, Azum N, Khan F, Sehemi GA, Asiri AM, Korean Journal of Chemical Engineering, 32(10), 2142, 2015
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