Effective charges and zeta potentials of oil in water microemulsions in the presence of Hofmeister salts
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Date
2018Type
Abstract
We present a theory which allows us to calculate the effective charge and zeta potential of oil droplets in microemulsions containing Hofmeister salts. A modified Poisson-Boltzmann equation is used to account for the surface and ion polarizations and hydrophobic and dispersion interactions. The ions are classified as kosmotropes and chaotropes according to their Jones-Dole viscosity B coeffi- cient. Kosmotropes stay hydrated and do not enter into the oil phase, while chaotropes can adsorb to th ...
We present a theory which allows us to calculate the effective charge and zeta potential of oil droplets in microemulsions containing Hofmeister salts. A modified Poisson-Boltzmann equation is used to account for the surface and ion polarizations and hydrophobic and dispersion interactions. The ions are classified as kosmotropes and chaotropes according to their Jones-Dole viscosity B coeffi- cient. Kosmotropes stay hydrated and do not enter into the oil phase, while chaotropes can adsorb to the oil-water interface. The effective interaction potentials between ions and oil-water interface are parametrized so as to accurately account for the excess interfacial tension. ...
In
The journal of chemical physics. New York. Vol. 148, no. 22 (June 2018), 222817, 5 p.
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Foreign
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Journal Articles (39351)Exact and Earth Sciences (5974)
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