Applied Physics A

, Volume 74, Supplement 1, pp s352–s354

SANS study of micellar aggregation of multi-headed surfactants

Authors

  • V.K. Aswal
    • Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
  • J. Haldar
    • Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
  • P.S. Goyal
    • IUC-DAEF, Mumbai Centre, Bhabha Atomic Research Centre, Mumbai 400085, India
  • S. Bhattacharya
    • Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India

DOI: 10.1007/s003390101100

Cite this article as:
Aswal, V., Haldar, J., Goyal, P. et al. Appl Phys A (2002) 74: s352. doi:10.1007/s003390101100

Abstract.

We report the aggregation properties of recently synthesised novel single-chain surfactants bearing one, two and three head groups. Small-angle neutron-scattering studies in aqueous solutions of these surfactants indicate that the extent of aggregate growth of these micelles dramatically decreases with the increase in the number of head groups. It is also seen that, unlike single-headed surfactants where the micelles grow on addition of salts (KBr and sodium salicylate), the sizes of the micelles of multi-head-group surfactants are independent of these additives. These studies show that the micellar properties of surfactants could be remarkably influenced by manipulation of the charge densities at the head groups.

PACS: 61.12.Ex; 61.25.Hq; 82.70.Dd

Copyright information

© Springer-Verlag 2002