Structure of adsorption layers of ionic surfactants at the solid/liquid interface |
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| Authors: | H Rupprecht T Gu |
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| Institution: | (1) Present address: Institut für Pharmazie, Universität Regensburg, Universitätsstr. 31, D-8400 Regensburg, FRG;(2) Present address: Department of Chemistry, Peking University, Universitätsstr. 31, D-8400 Beijing, China |
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| Abstract: | A large number of experimental results of different surfactant adsorption systems (mainly on the silicas) obtained from both equilibrium and kinetic studies under different conditions are interpreted by a model of small individual surface aggregates. The adsorption model is contrasted with the influences of various factors, including electrostatic interaction, hydrophobic interaction, concentrations, types of coions, types of counterions, surfactant structure, alkyl chain length, types of head groups, neutral electrolytes, pH, adsorbent structure, porosity, surface charge density, and surface polarity.Dedicated to Frau Professor Dr. Elsa Ullmann on the occasion of her 80th birthday |
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| Keywords: | Adsorption layer surfactant adsorption surfacta aggregate hemimicelle adsorption model coions effects counterions effects head groups effects electrolyte effects pH effects surface polarity porosity surface charge density electrostatic interaction hydrophobic interaction |
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