Numéro
J. Phys. IV France
Volume 03, Numéro C4, Septembre 1993
4th International Workshop on Positron and Positronium Chemistry
Page(s) C4-321 - C4-323
DOI http://dx.doi.org/10.1051/jp4:1993452
4th International Workshop on Positron and Positronium Chemistry

J. Phys. IV France 03 (1993) C4-321-C4-323

DOI: 10.1051/jp4:1993452

Phase transformation studies in (TTAB + pentanol)/water/n-octane system

P. HOSSEIN KHANI1, A.N. MAITRA2 and P.C. JAIN1

1  Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India
2  Department of Chemistry, University of Delhi, Delhi 110 007, India


Abstract
Phase transformation studies have been carried out in (TTAB+pentanol)/water/ n-octane system using optical and positron lifetime spectroscopic methods. TTAB and pentanol were mixed in 1 : 1 proportion by weight. The phase diagram for this system was constructed by birefringence measurements. It exhibits a well defined isotropic L2 phase. Positron lifetime measurements carried out in this phase show its inhomogeneity. These measurements have made it possible to demark the boundary between the droplet like and the bicontinuous structures in this phase. The results are supported by electrical conductivity measurements.



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