Adsorption and Ionization of Carboxylic Acids at the Air/Water Interface
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Surfactants are widely used in our daily life from pharmaceuticals and washing products to petroleum and biotechnology. Despite of thousands years of applications, the ionization of surfactants at the air/water interface is still unquantified. This study focuses on ionic surfactants performance at air/water interface. Carboxylic acids of C9 and C10 were investigated experimentally and theoretically. Finally, adsorption parameters obtained from this work shred important insights into ionization of fatty acids at the air/water interface.
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Phan, Chi; Thu, L.; Yusa, S. (2013)The Gibbs adsorption equation has been indispensable in predicting the surfactant adsorption at the interfaces, with many applications in industrial and natural processes. This study uses a new theoretical framework to ...
Nguyen, Van Cuong; Nguyen, T.V.; Phan, Chi (2015)The adsorption of a gemini surfactant, α,ω-bis(N-alkyl dimethylammonium) alkane dibromides, at the air/water interface was investigated by tensiometry. Equilibrium and dynamic surface tension were modelled by a new modelling ...
Gao, G.; Nguyen, C.; Phan, Chi (2017)© 2017 Elsevier B.V. While it is conventionally believed that interaction between electrolytes and surfactants at the air/water interface can have profound impact on surface tension, a quantitative description remains ...