Effects of some anions of the Hofmeister series on the rheology of cetyltrimethylammonium-salicylate wormlike micelles

Properties and sodium salicylate induced aggregation behavior of a tail-branched cationic surfactant with a hydroxyl-containing hydrophilic head

“…In the past two decades, there has been tremendous amount of studies focusing on the viscoelastic micellar solutions generated by cationic surfactant-salt solution systems [19][20][21] because of their fascinating evolution of nanoscale architectures manipulated by halide anions or other structure-inducing counter ions among which the sodium salicylate is the most extensively used one. [22][23][24] These facilely tuned self-assembly nanostructures are believed to have potential applications in preparation of microscopic functional materials where microstructured templates are needed. 25,26 A variety of cationic surfactants 27 have been engaged in those studies including cetyltrimethylammonnium bromide (CTAB), cetyltrimethylammonnium chloride (CTAC), cetylpyridinium chloride (CPC) et al and the morphology of microstructures or the rheological properties are generally modulated by varying the surfactant concentration, salt/surfactant molar ratio and temperature.…”