Naslov
Properties of Cationic Surfactants in Pure and Mixed States

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

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / Težak, Đurđica - Zagreb : Sveučilište u Zagrebu, 1998, 46-46

Skup
12th Conference of the European Colloid and Interface Society

Mjesto i datum
Cavtat, Hrvatska, 20.09.1998. - 25.09.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
adsorption; association; surfactants

Sažetak
The solution properties of the cationic surfactants dodecyl-, tetradecyl-, and hexadecylammonium chloride as well as hexadecyltrimtehylammonium bromide in pure and mixed states have been studied. Their adsorption at the air/solution interface and micellar properties (the critical micelle concentration, counterion binding, thermodynamic of micellization, hydrodynamic radius, etc.) were evaluated by surface tension, conductance and light scattering measurements. The surfactant mixed non-ideally in both the mixed films and in mixed micelles. A change of counterion binding was observed compared to the pure states. The composition of mixed films and mixed micelles, the corresponding activity coefficients, and the interaction parameters were determined using the regular solution theory.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA