Mixed Micellization of Cationic Gemini Surfactants with Primary Linear Alkylamines
作者： Iqrar Ahmad Khan , Riyaj Mohammad , Md Sayem Alam , Kabir-ud-Din
DOI: 10.1007/S11743-009-1148-0
关键词: Microemulsion 、 Micelle 、 Thermodynamics of micellization 、 Inorganic chemistry 、 Gibbs isotherm 、 Pulmonary surfactant 、 Hexylamine 、 Pentylamine 、 Critical micelle concentration 、 Chemistry
摘要: Due to the potential use of amines as co-surfactants in microemulsions, effect adding alkylamines (C4–C8NH2) on aggregation properties cationic gemini surfactants [pentanediyl-1, 5-bis(dimethylcetylammonium bromide) and hexanediyl-1, 6-bis(dimethylcetylammonium bromide), referred 16-5-16 16-6-16 compounds] has been studied using tensiometry at 303 K. Data critical micelle concentration (CMC), surface C20 (the surfactant required reduce tension by 20 mN/m), Гmax (maximum excess), A min (minimum area per molecule) evaluated from versus plot, interaction parameters βσ (for mixed monolayer formation aqueous solution/air interface), βm medium) are reported. synergistic was observed both well interface, evident parameters. Theoretical models Clint, Rubingh Rosen were used explain compare results. More compared 16-6-16. The CMC values 16-s-16 (s = 5, 6) decreased with increasing amine concentrations extent followed sequence: octylamine > heptylamine hexylamine pentylamine butylamine.
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