Click here to view fulltext PDF

Permanent link:
https://www.ias.ac.in/article/fulltext/pram/063/02/0297-0302

Small-angle neutron scattering; nonionic surfactant; micellar aggregation number

Micellar solution of nonionic surfactantn-dodecyloligo ethyleneoxide surfactant, decaoxyethylene monododecyl ether [CH₃(CH₂)₁₁(OCH₂CH₂)₁₀OH], C₁₂E₁₀ in D₂O solution have been analysed by small-angle neutron scattering (SANS) at different temperatures (30, 45 and 60° C) both in the presence and absence of sugars. The structural parameters like micelle shape and size, aggregation number and micellar density have been determined. It is found that the micellar structure significantly depends on the temperature and concentration of sugars. The micelles are found to be prolate ellipsoids at 30° C and the axial ratio of the micelle increases with the increase in temperature. The presence of lower concentration of sugar reduces the size of micelles and it grows at higher concentration of sugar. The structure of micelles is almost independent of the different types of sugars used.

K Shivaji Sharma¹ J V Joshi² V K Aswal³ P S Goyal² A K Rakshit¹

1. Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara - 390 002, India
2. IUC-DAEF, Mumbai Centre, Mumbai - 400 085, India
3. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India

Published

August 2004