Phase Transitions in Cationic and Anionic Surfactant Mixtures (CROSBI ID 77442)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bujan, Marija ; Vdović, Neda ; Filipović-Vinceković, Nada
engleski
Phase Transitions in Cationic and Anionic Surfactant Mixtures
The phase behavior of cationic and anionic surfactant mixtures strongly depends on the molar ratio and actual concentration of surfactants. The phase diagram contains large areas of coexisting solid crystalline catanionic surfactant and liquid crystalline phases. Intermediate phases from pure solid crystalline catanionic surfactant to mixed micelles were examined by light microscopy under crossed polarizers and potentiometric and electrophoretic measurements. The mixed liquid crystalline phase is composed of both cationic and anionic surfactants. Its appearance as lamellar droplets may be explained by the increase in electrostatic repulsion at the bilayer surface.
catanionic surfactants ; mixed liquid crystals ; surfactant mixtures
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Podaci o izdanju
118 (1-2)
1996.
121-126
objavljeno
0927-7757
1873-4359
10.1016/0927-7757(96)03724-7