Naslov
Adsorption and Association in Binary Mixtures of Cationic Surfactants
(Adsorption and Association in Binary Mixtures of Cationic surfactants)

Autori
Filipović-Vinceković, Nada ; Bujan, Marija ; Juranović, Iva

Izvornik
Journal of Dispersion Science and Technology (0193-2691) 20 (1999), 7; 1737-1758

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
alkylammonium chlorides; hexadecyltrimethylammonium bromide; cationic surfactant mixtures

Sažetak
The adsorption and solution properties of cationic surfactants dodecylammonium chloride, tetradecylammonium chloride, and hexadecylammonium chloride, as well as hexadecyltrimtehylammonium bromide in pure and mixed states, were studied by surface tension and conductance measurements. The surfactants mixed non-ideally in both mixed monolayer and in the mixed micelles. The regular solution theory was used for evaluating the non-ideal interactions between molecules in adsorbed and micellar states. Similar values of the mixed monolayer and mixed micelle molecular interaction parameters in a mixture imply the molecules at the interface and in the mixed micelle have similar interactions. No synergism in surface tension effectiveness was observed. The adsorbed film at the air/water interface and mixed micelles were richer in more surface-active component.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA