Comparative study of the viscoelastic wormlike micellar solutions of hexanediyl-α,ω-bis(dimethylcetylammonium bromide) and cetyltrimethylammonium bromide in the presence of sodium salicylate

A comparative study of the viscoelastic properties of the wormlike micellar solutions of hexanediyl-α,ω-bis(dimethylcetylammonium bromide), referred to as 16-6-16, and cetyltrimethylammonium bromide (CTAB) in the presence of sodium salicylate (NaSal) has been carried out. In terms of Cates model on Maxwell fluid, the characteristic parameters of both wormlike micelles were revealed and compared. The results were discussed on the basis of their different molecular structures, which leaded to different response of 16-6-16 and CTAB to salt.