| Affiliation: | (1) Department of Chemistry, Guru Nanak Dev University, 143005 Amritsar, Punjab, India;(2) Department of Applied Physics, Guru Nanak Dev University, 143005 Amritsar, Punjab, India;(3) Solid State Physics Division, Bhabha Atomic Research Centre, 400085 Mumbai, India;(4) Inter-University Consortium for the Department of Atomic Energy Facilities, Mumbai center, Bhabha Atomic Research Centre, 400085 Mumbai , India |
| Abstract: | Small-angle neutron scattering (SANS) and turbidity measurements have been carried out on the nonionic surfactants Tween 20 and Tween 80, in the presence of diethyleneglycol (DEG), triethyleneglycol (TEG), ethylene glycol monoethyl ether (EGMEE), and ethyleneglycol mono butyl ether (EGMBE). SANS measurements show that the shapes of the Tween 20 and Tween 80 micelles are oblate ellipsoidal, which do not change predominantly in the presence of DEG and TEG. However, the presence of EGMBE and EGMEE reduces the aggregation number of Tween. This has been attributed to the solubilization of EGMBE and EGMEE in the Tween micelles, providing them with additional hydrophobicity. |
