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Micellization investigations of meristyl alcohol based bis-sulfosuccinate gemini surfactant with anionic and nonionic conventional surfactants

Vinayika Singh, Rashmi Tyagi


Micellization studies have been carried out to investigate the mean aggregation number of aqueous solution of newly synthesized bis-sulfosuccinate gemini surfactant based on meristyl alcohol (BSGSMA1,4) using flexible spacer as methylene chain (CH2)4. The methylene chain was introduced via α,ω-dibromo butane in the reaction. The present study explored the effect of prepared gemini towards the two well recognized conventional surfactants i.e. sodium dodecyl sulphate (SDS) and Triton X 100 in mixed micelles of binary systems. The measurements were carried out by using steady state fluorescence technique. From the study, it was observed that the value of N for pure BSGSMA1,4 (3*CMC) was enhanced from N=14 to N=32 for mixed BSGSMA1,4 + SDS (3*CMC) system and suppressed (N=12) for mixed BSGSMA1,4 + Triton X 100 (3*CMC). As concentrations of SDS (5*CMC) and Triton X 100 (40*CMC) were increased in mixed systems, the value N was also enhanced for both systems and found to be 57 and 33 respectively. The results revealed the more favorable micellization behavior of gemini BSGSMA1,4 towards the SDS as compared to Triton X 100 and also exhibited the good synergism behavior of prepared gemini with conventional anionic surfactant (SDS) even at a lower concentration i.e. 3*CMC.

Keywords: aggregation number, anionic bis-sulfosuccinate gemini surfactant, mixed systems

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