Interactions of selected flavonoids with NaDS micelles
Abstract
Critical micelle concentrations (cmc) and degree of counterion dissociation (β) of sodium dodecyl sulphate micelles, in the presence of two flavonoids type additives, were determined at 298.15 ± 0.01 K using electrical conductivity. The dependences of the cmc on additive concentration follow a generalised type Setchenow equation and allowed the determination of Setchenow micellisation constants (K M ) for each solute. K M values revealed the high hydrophobicity of these compounds, and suggest that structural factors are determinant for the partition towards the micellar phase.