Abstract
Abstract Fluorescence spectrum of sodium p-dimethylaminobenzoate (SOMAB) in aqueous solution was recorded as a function of the concentration of positive ionic surfactant, Zeph, CTAC, and CTAB, respectively. Dual fluorescence which is characteristic of the excited state TICT of SDMAB was observed in aqueous surfactant solution. Micelle formation can be identified by the break that appears in curve of intensity ratio of TICT emission band to LE band, la/lb, versus surfactant concentration. The TICT band is shifted to blue in micelle as compared to that in pure water, which is an indication that SDMAB is buried in the apolar portion of the positively charged micelle, and the micellar phase polarity is probed to be the same for the three micelles. The la/lb ratio in three micelles takes an order as Zeph > CTAC > CTAB. This order is shown to be due to the differnce in strength of electric field at micelle interface. A blue-shift of TICT band with surfactant concentration before micelle formation was noted, whi...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
