| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 597365 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2007 | 7 Pages |
Abstract
The absorption and steady-state fluorescence of a non-amphiphilic derivative of pyrene, Pyrene-1-Carboxaldehyde (1-PyCHO) is sensitive to the probe's environment. Association of the surfactants in aqueous medium as micelles and mixed micelles has been studied from the photophysical changes of 1-PyCHO in these media. The physicochemical characteristics of the micelles, i.e. CMC, aggregation number have been determined. The obtained CMC values from different methods are close to each other. The association constants of the 1-PyCHO molecules with the non-ionic micelle of Igepal and location of the fluorophore in the micellar environment have been determined. Micropolarity of Igepal micelle and Igepal/Igepal mixed micelle surrounding 1-PyCHO has been ascertained comparing the shift in fluorescence maximum with ET(30) values of standard solutions.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Paltu Banerjee, Sujan Chatterjee, Smritimoy Pramanik, Subhash Chandra Bhattacharya,