H. Suhaimi, Laili Che Rose, A. Kassim
Aug 1, 1993
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0
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Journal
Bulletin of the Chemical Society of Japan
Abstract
A phase studies was carried out on the phase equilibria in the three component systems of single and binary mixture (1 : 1) of trimethyltetradecylammonium bromide (TTAB) and hexadecyltrimethylammonium bromide (HTAB) with water and 1-hexanol at 30 °C. The phases were separated by repeated centrifugation. The birefringence was observed under cross polarizers and their consistency, texture and optical pattern were examined under the polarizing microscope. On the basis of the results obtained, a phase diagram was drawn that consists of two phases of isotropic solution and two mesophases. Results also showed a larger region for the lamellar liquid crystalline in the mixed system. The critical micelle concentration for the micellar region of the mixture was found at 0.0014 mol dm−3.