Physicochemical investigations of mixed micelles of cationic gemini surfactants with different triblock polymers
作者： Andleeb Z. Naqvi , Nazish Fatma , Kabir-ud-Din
DOI: 10.1007/S00396-017-4195-5
关键词:
摘要: The surface tensions of cationic geminis, alkanediyl-α,ω-bis(dimethylalkylammonium bromide) (mGs—m = 14,16 and s = 5,6) + triblock polymers (TBPs—F68, F127, L64) mixtures, over the entire mole fraction range were determined. Cationic conventional surfactants, alkyltrimethylammonium bromides (TTAB, CTAB) + TBP systems, also studied for comparison. Analysis data by means regular solution theory revealed that adsorbed monolayer at air/water interface was much richer in surfactants than micelles intermicellar solution. interaction between TBP molecules strong most cases. participation monomeric lower gemini surfactants. critical micelle concentration (cmc) parameter; activity coefficient components mixed composition cmc computed, it found systematically TBPs. Participation is their contribution interface.
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