Influence of polyelectrolyte on micellar behaviour of non-ionic surfactant using dye solubilization technique

V. B. Jadhav , A. A. Patil an

Abstract

The change in critical micellar concentration of Tween-80 has been studied through the influence of additive PVSA in aqueous medium by measuring the absorbance of the pure surfactant and with PVSA in presence of water insoluble dye Orange-OT by using dye solubilization technique. The absorbance was found to be increased with increased concentration of pure surfactant Tween-80. The absorbance of the mixed systems with PVSA also shows the same trend. The CMC of pure surfactant get decreased with increased concentration of additive PVSA. The influence of additive PVSA on the absorbance of Tween-80 suggests that the dye micellization is associated with the different micelles coalescing.