Influence in the Surface Activity for Some Cationic Thiol Surfactants Using Their Nanostructures

A series of some cationic thiol surfactants based on 2-mercapto pyridine were synthesized. These surfactants have decyl, dodecyl and cetyl hydrophobic moiety, respectively. The nanopowder forms of the synthesized surfactants were prepared using the ball mill technique and studied using transmission...

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Bibliographic Details
Published in:Journal of dispersion science and technology 2011-09, Vol.32 (9), p.1325-1331
Main Authors: Azzam, E. M. S., Kandile, N. G., Badawi, A. M., Sami, R. M.
Format: Article
Language:English
Subjects:
Cationic
Cationic thiol surfactants
Chemistry
Colloidal state and disperse state
Emulsions. Microemulsions. Foams
Exact sciences and technology
General and physical chemistry
Micelles. Thin films
Nanocomposites
Nanomaterials
Nanoparticles
nanopowders
Nanostructure
Nanotechnology
Physical and chemical studies. Granulometry. Electrokinetic phenomena
self-assembling
Silver
silver nanoparticles
surface activity
Surface chemistry
Surface physical chemistry
Surfactants
Transmission electron microscopy
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Summary:A series of some cationic thiol surfactants based on 2-mercapto pyridine were synthesized. These surfactants have decyl, dodecyl and cetyl hydrophobic moiety, respectively. The nanopowder forms of the synthesized surfactants were prepared using the ball mill technique and studied using transmission electron microscope (TEM). In addition, the nanostructure of these surfactants with the prepared colloidal silver nanoparticles (AgNPs) was investigated using ultraviolet (UV) spectrophotometer and TEM techniques. The surface activity of the synthesized surfactants and their nanostructures as nanopowder forms and with silver nanoparticles was investigated using surface tension, interfacial tension, and emulsion stability techniques. The surface and thermodynamic parameters such as critical micelle concentration (CMC), effectiveness (Π cmc ), minimum area (A min ), and free energies (ΔG mic , ΔG ads ) were determined. The results show the influence in the surface activity of the nanostructures for the synthesized surfactants more than that of the individual surfactants.
ISSN:0193-2691
1532-2351
DOI:10.1080/01932691.2010.505825