Interface of AOT/Brij mixed reverse micellar systems: conductometric and spectrophotometric investigations |
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Authors: | Chatterjee Sujan Mitra Rajib Kumar Paul Bidyut Kumar Bhattacharya Subhash Chandra |
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Institution: | Department of Chemistry, Jadavpur University, Kolkata 700032, India. |
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Abstract: | Solubilization and conductivity studies are carried out with AOT/Brijs (Brij-30, Brij-35, Brij-52, Brij-56, Brij-58, Brij-72, Brij-76, Brij-78)/isooctane/water mixed reverse micellar systems. Replacement of AOT molecules with large head group Brij molecules (Brij-30, Brij-35, Brij-56, Brij-58, Brij-76, Brij-78) decreases the solubilization capacity, whereas those with smaller polar head groups (Brij-52 and Brij-72) increases it. The former blends assist the conductance percolation whereas the latter retard it. An attempt has been taken to obtain more insight on the interfacial composition of the mixed interface with the help of spectrophotometric studies using 7-hydroxycoumarin as the fluorophore. The results obtained from the solubilization and conductometric studies have been correlated with those obtained from the spectroscopic studies. |
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