Synthesis and Interfacial Activity of Novel Heterogemini Sulfobetaines in Aqueous Solution.
J Surfactants Deterg
; 18(3): 477-486, 2015.
Article
in En
| MEDLINE
| ID: mdl-25814830
ABSTRACT
Three new heterogemini sulfobetaines and their chloride salts were synthesised. The interfacial activities of the obtained chlorides in aqueous solution were studied by equilibrium and dynamic surface tension measurements. The critical micelle concentration, surface excess concentration, minimum area per surfactant molecule and standard Gibbs energy of adsorption as well as micelle lifetime and diffusion coefficient were determined. The adsorption properties and micelle lifetime of these compounds significantly depend on the length of alkyl chain. The critical micelle concentration decreases with increasing chain length of the compounds considered. The values of the diffusion coefficient of N-alkyl-N-methyl-N-(3-sulfopropyl)-6-(N-alkyl-N-methylamino)hexylammonium chloride tend to decrease as the concentration is increased.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Surfactants Deterg
Year:
2015
Document type:
Article
Affiliation country:
Polonia