Synthesis and Interfacial Activity of Novel Heterogemini Sulfobetaines in Aqueous Solution

• DOI: 10.1007/s11743-014-1663-5
• Publication Date: 2014-12-30T13:38:06Z
• Authors: Dobrawa Kwaśniewska; Katarzyna Staszak; Daria Wieczorek; Ryszard Zieliński
• Keywords: Thermodynamics of micellization; Aggregation number

Three new heterogemini sulfobetaines and their chloride salts were synthesised. The interfacial activities of the obtained chlorides in aqueous solution studied by equilibrium dynamic surface tension measurements. critical micelle concentration, excess minimum area per surfactant molecule standard Gibbs energy adsorption as well lifetime diffusion coefficient determined. properties these compounds significantly depend on length alkyl chain. concentration decreases with increasing chain considered. values N-alkyl-N-methyl-N-(3-sulfopropyl)-6-(N-alkyl-N-methylamino)hexylammonium tend to decrease is increased.