J. Phys. IV France
Volume 03, Numéro C4, Septembre 19934th International Workshop on Positron and Positronium Chemistry
|Page(s)||C4-333 - C4-335|
J. Phys. IV France 03 (1993) C4-333-C4-335
Structural transformations in TTAB aggregated binary systemsR. YADAV, PH. KHANI and P.C. JAIN
Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India
Abstract Structural transformations in TTAB aggregated systems have been investigated using positron lifetime spectroscopy. Positron lifetime measurements have been carried in TTAB/water and TTAB/pentanol binary solutions as a function of surfactant concentration. In TTAB/water, molecular aggregation sets in at a surfactant concentration of ~ 3.5 mM(CMC). Several changes in micellar structure as a function of surfactant concentration are indicated. In TTAB/pentanol binary solutions, evidence for molecular aggregation is seen. With increasing surfactant concentration other structural transformations are indicated.
© EDP Sciences 1993