Surface activity and formation of liquid crystals of didecyl-dimethyl ammonium bromide in presence of ethanol

Y. Sela*, S. Magdassi

*Corresponding author for this work

Research output: Contribution to specialist publicationArticle

Abstract

The surface activity and formation of liquid crystals by didecyl-dimethyl ammonium bromide (DDAB) in the presence of ethanol was studied. It was found that the critical micelle concentration and the area per molecule increased at an ethanol concentration above 2 M, in which a significant change in solvent properties occurs. DDAB formed lamellar liquid crystals which were destroyed by the added ethanol at a concentration similar to that which prevented the formation of micelles.

Original languageAmerican English
Pages137-138
Number of pages2
Volume28
No2
Specialist publicationTenside, Surfactants, Detergents
StatePublished - Mar 1991

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