Interactions of glutamine dipeptides with sodium dodecyl sulfate in aqueous solution measured by volume, conductivity, and fluorescence spectra

摘要: Abstract Densities, conductivities, and fluorescence spectra of {sodium dodecyl sulfate (SDS) + glutamine dipeptide + water} mixtures were measured as a function temperature. The density data have been utilized to calculate apparent molar volumes, standard partial volumes ( V 2 , φ o ), transfer from water aqueous SDS solutions (ΔtVo), the hydration number, expansibility E Hepler’s constant glutamine dipeptides. critical micellar concentration (ccmc) degree counterion dissociation micelles obtained electrical conductivity estimated at various concentrations dipeptide. Thermodynamic parameters micellization in dipeptide determined ccmc values an enthalpy–entropy compensation effect was observed for ternary systems. pyrene used study change micropolarity produced by interaction with dipeptide, aggregation behavior SDS. results interpreted terms solute–solvent interactions structural changes mixed solutions.