TY - JOUR
T1 - Kinetics of surfactant adsorption
T2 - the free energy approach
AU - Diamant, Haim
AU - Ariel, Gil
AU - Andelman, David
N1 - Funding Information:
We thank E. Franses, D. Langevin, S.-Y. Lin, R. Miller and C. Radke for stimulating discussions and correspondence. Partial support from the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities — Centers of Excellence Program — and the US-Israel Binational Foundation (B.S.F.) under grant no. 98-00429 is gratefully acknowledged.
PY - 2001/7/15
Y1 - 2001/7/15
N2 - We review the free energy approach to the kinetics of surfactant adsorption at fluid-fluid interfaces. The formalism is applied to several systems. For non-ionic surfactant solutions, the results coincide with earlier models while indicating their limits of validity. We study the case of surfactant mixtures, focusing on the relation between the mixture kinetics and the properties of its individual constituents. Strong electrostatic interactions in salt-free ionic surfactant solutions drastically modify the adsorption kinetics. In this case the theory accounts for experimental results, which could not be earlier understood. The effect of screening by added salt is studied as well. Our theoretical predictions are compared with available experiments.
AB - We review the free energy approach to the kinetics of surfactant adsorption at fluid-fluid interfaces. The formalism is applied to several systems. For non-ionic surfactant solutions, the results coincide with earlier models while indicating their limits of validity. We study the case of surfactant mixtures, focusing on the relation between the mixture kinetics and the properties of its individual constituents. Strong electrostatic interactions in salt-free ionic surfactant solutions drastically modify the adsorption kinetics. In this case the theory accounts for experimental results, which could not be earlier understood. The effect of screening by added salt is studied as well. Our theoretical predictions are compared with available experiments.
KW - Adsorption
KW - Interfacial phenomena
KW - Kinetics
KW - Surface tension
KW - Surfactants
UR - http://www.scopus.com/inward/record.url?scp=0035880036&partnerID=8YFLogxK
U2 - 10.1016/S0927-7757(01)00553-2
DO - 10.1016/S0927-7757(01)00553-2
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AN - SCOPUS:0035880036
VL - 183-185
SP - 259
EP - 276
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
ER -