6533b854fe1ef96bd12adeb2

RESEARCH PRODUCT

Dielectric properties of water/lecithin/cyclohexane gels

Francesco AliottaV. Turco LiveriM. E. FontanellaP. MigliardoG. La Manna

subject

food.ingredientAqueous solutionPolymers and PlasticsCyclohexaneChemistryThermodynamicsDielectricLecithinPower lawchemistry.chemical_compoundColloid and Surface ChemistryfoodNuclear magnetic resonanceMaterials ChemistryRelaxation (physics)MicroemulsionPhysics::Chemical PhysicsPhysical and Theoretical ChemistryReflectometry

description

Dielectric relaxation measurements in the frequency range 0.1–15 GHz have been carried out on water/lecithin/cyclohexane gels using a time domain reflectometry method (TDR). Dielectric dispersions describable in terms of a power law typical of percolated systems, but with exponents significantly different from those characterizing statically or dynamically percolated systems are observed. The dielectric dispersions, attributed to water and/or lecithin head group rotational motions, indicate that these motions are characterized by a wide spectrum of relaxation times.

https://doi.org/10.1007/bf00657073