Search results for " Brillouin spectroscopy"

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Emerging dynamics in surfactant-based liquid mixtures: octanoic acid/bis(2-ethylhexyl) amine systems.

2012

This work focuses on the dynamic phenomena emerging in self-assembled transient intermolecular networks formed when two different surfactants are mixed. In particular, the relaxation processes in liquid mixtures composed by bis(2-ethylhexyl)amine (BEEA) and octanoic acid (OA) in the whole composition range has been investigated by dielectric spectroscopy and Brillouin spectroscopy. A thorough analysis of all the experimental data consistently suggests that, mainly driven by acid-base interactions arising when the two surfactants are mixed, supra-molecular aggregates formation causes the slowing down of molecular dynamics. This, in turn, reflects to longer-range relaxations. These changes ha…

Brillouin SpectroscopyChemistryRelaxation (NMR)Intermolecular forceGeneral Physics and AstronomyConductivity..Dielectric spectroscopyMolecular dynamicsLiquid mixturesChemical physicsionic conductivitybis(2-ethylhexyl)amine octanoic acid dielectric spectroscopy Brillouin spectroscopy liquid mixturesOrganic chemistryIonic conductivitySelf-assemblyPhysical and Theoretical Chemistryionic conductivity; Liquid mixtures; Brillouin scatteringBrillouin scatteringSettore CHIM/02 - Chimica FisicaThe Journal of chemical physics

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