Counter ion Effects in AOT Systems and New Fluorocarbon- based Micro Emulsion Gels Counter Ion Effects in AOT Systems
Authors: Narjes Nakhostin Maher, Mohammad Ali Adelian
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Micro emulsions have important applications in various industries, including enhanced Oil recovery, reactions, separations, drug delivery, cosmetics and foods. We investigated Two different kinds of water-in-oil micro emulsion systems, AOT (bis(2-ethylhexyl) sulfosuccinate) micro emulsions with various counter ions and per fluorocarbon-based Micro emulsion gels with triblock copolymers. In the AOT systems, we investigated the Viscosity and inter droplet interactions in Ca(AOT)2, Mg(AOT)2 and KAOT Micro emulsions, and compared our results with the commonly-studied NaAOT/water/decane system. We attribute the differences in behavior to different, hydration characteristics of the counter ions, and we believe that the results are consistent with a previously proposed charge fluctuation model. Per fluorocarbons (PFCs) are of Interest in a variety of biomedical applications as oxygen carriers. We have used triblock Copolymer Pluronic® F127 to modify the theology of PFC-based micro emulsions, we Have been able to form the rmoreversible PFOB (perfluorooctyl bromide)-based gels, and have investigated the phase stability, theology, microstructure, interactions, and gelation Mechanism using scattering, reometry, and microscopy. Finally, we attempted to use these data to understand the relationship between reology and structure in soft attractive Colloids.