Mixed Micelle Formation and Solubilization Behavior toward Polycyclic Aromatic Hydrocarbons of Binary and Ternary Cationic−Nonionic Surfactant Mixtures

2007 ◽  
Vol 111 (12) ◽  
pp. 3122-3132 ◽  
Author(s):  
Aijaz Ahmad Dar ◽  
Ghulam Mohammad Rather ◽  
Akhil Ranjan Das
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Nonionic Surfactant ◽  
Aromatic Hydrocarbons ◽  
Mixed Micelle ◽  
Micelle Formation ◽  
Surfactant Mixtures ◽  
Mixed Micelle Formation ◽  
Polycyclic Aromatic

scholarly journals Thermodynamic and Interfacial Properties of DTABr/CTABr Mixed Surfactant Systems in Ethanolamine/Water Mixtures: A Conductometry Study

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Olaseni Segun Esan ◽  
Medinat Olubunmi Osundiya ◽  
Christopher Olumuyiwa Aboluwoye ◽  
Owoyomi Olanrewaju ◽  
Jide Ige
Keyword(s):  
Mixed Micelle ◽  
Mixed Solvent ◽  
Pure Water ◽  
Micelle Formation ◽  
Theoretical Models ◽  
Solvent System ◽  
Synergistic Interaction ◽  
Surfactant Mixtures ◽  
Mixed Micelle Formation ◽  
Free Energy Of Micellization

Mixed-micelle formation in the binary mixtures of dodecyltrimethylammonium bromide (DTABr) and cetyltrimethylammonium bromide (CTABr) surfactants in water-ethanolamine mixed solvent systems has been studied by conductometric method in the temperature range of 298.1 to 313.1 K at 5 K intervals. It was observed that the presence of ethanolamine forced the formation of mixed micelle to lower total surfactant concentration than in water only. The synergistic interaction was quantitatively investigated using the theoretical models of Clint and Rubingh. The interaction parameter β12 was negative at all the mole fractions of DTABr in the surfactant mixtures indicating a strong synergistic interaction, with the presence of ethanolamine in the solvent system resulting in a more enhanced synergism in micelle formation than in water only. The free energy of micellization ΔGM values was more negative in water-ethanolamine mixed solvent system than in pure water indicating more spontaneity in mixed micelle formation in the presence of ethanolamine than in pure water.

Sign in / Sign up

Export Citation Format

Share Document