pH changes as a function of concentration for sodium dodecyl sulfate (SDS) and dodecyltrimethylammonium bromide (DTAB) were observed by the addition of 1 N HCl and 1 N KOH. pH values increased up to the critical micellar concentration (CMC) for the SDS/HCl system and decreased for the DTAB/KOH system. In the SDS/HCl and DTAB/KOH systems, the micellar phase had a fixed composition and was homogeneous and monodisperse above the CMC. However, in the SDS/KOH and DTAB/HCl systems, pH values increased in a continuous and gradual manner below and above the CMC, and the properties of the micellar phase changed with temperature as a function of concentration, giving rise to inhomogeneity and polydispersity
Critical micellar concentration, dodecyltrimethylammonium bromide, sodium dodecyl sulfate, hydrochloric acid, potassium hydroxide, pH, phase separation.
BAYRAK, YÜKSEL (2003) "Micelle Formation in Sodium Dodecyl Sulfate and Dodecyltrimethylammonium Bromide at Different Temperatures," Turkish Journal of Chemistry: Vol. 27: No. 4, Article 9. Available at: https://journals.tubitak.gov.tr/chem/vol27/iss4/9