AI Article Synopsis
- The study introduces a theory to calculate the effective charge and zeta potential of oil droplets in microemulsions with Hofmeister salts using a modified Poisson-Boltzmann equation.
- Ions are categorized as kosmotropes (which remain hydrated and avoid the oil phase) and chaotropes (which can adsorb to the oil-water interface) based on their viscosity properties.
- The research establishes effective interaction potentials between ions and the oil-water interface to account for excess interfacial tension accurately.
Article 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 coefficient. 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.
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| http://dx.doi.org/10.1063/1.5019704 | DOI Listing |
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