Surface and bulk properties of aqueous decyltrimethylammonium bromide–hexadecyltrimethylammonium bromide mixed system

Physicochemical Studies on the Interfacial and Micellization Behavior of CTAB in Aqueous Polyethylene Glycol Media

“…It may be mentioned that PEG oligomers themselves were surface active; hence surface tension values of aqueous PEGmixed solvent systems were lower than that of pure water. Such a lowering effect of surface tension by EG oligomers has been reported in the literature [50][51][52]65]. Similar results have also been found by others where the surface tension lowering effect was induced by EG [22].…”

Monitoring the aggregation behaviour of self-assembling polymers through high-resolution ultrasonic spectroscopy

“…While all these techniques are necessary for deeper understanding of the systems, they are quite complex and required highly specialized researchers and dedicated instruments. For more general characterization of the basic behaviour of systems, for example, to determine the CMC and the CMT, researchers use more common and widespread methodologies such as spectroscopy techniques (Alexandridis et al, 1994;Alexandridis and Hatton, 1995;Gaisford et al, 1998), light scattering (Yoshida, 2003;Sharma et al, 2007), surface tension (Rodriguez et al, 2007;Sharma et al, 2007) and in particular, differential scanning calorimetry (DSC) (Alexandridis et al, 1994;Wanka et al, 1994;Paterson et al, 1997;Artzner et al, 2007;Trong et al, 2008).…”

Conductometric and fluorometric investigations on the mixed micellar systems of cationic surfactants in aqueous media

“…In comparison, there is relatively little information presented in literature about the contribution of each surfactant in the monomeric and micellar phases of the mixed system. Recently Junquera and Aicart [18][19][20] investigated the partial contribution of cmc * 1 and cmc * 2 of the surfactants in mixed systems to the monomeric phase cmc * and micellar phase through aggregation number N * i . The authors focused on synergistic interactions of near ideal systems using surfactants with equally sized chain lengths and very similarly structured head groups.…”