Synthesis and Properties of a Novel Fluorescent Surfactant

Abstract

A novel kind of fluorescent surfactant by having a hydroxyl coumarin group and a sulfonate group attached to the same alkyl chain has been synthesized. The determined critical micelle concentration (CMC) values and surface tensions (γ_cmc) at CMC for the fluorescent surfactant are in good agreement with the conventional surfactants. Ultraviolet absorption and fluorescence parameters of the product against the variation of the pH values are studied. The results indicate that the absorption and fluorescence intensity attribute to the interaction between the product and OH⁻. These properties make them very promising for applications of determining the interface properties.

Keywords:

• critical micelle concentration
• fluorescence parameters
• fluorescent surfactant
• surface tension
• ultraviolet absorption

Acknowledgment

We appreciate the financial support granted by the 973 National Key Basic Research Development Program.