Synthesis and Use of a Perfluorinated Coumarin-Based Surfactant as an Antifouling Coating

Abstract

This study presents the design and evaluation of a novel hybrid surfactant based on perfluorocoumarin, developed for antifouling marine coatings. The surfactant was synthesized via the functionalization of coumarin with fluorinated chains and incorporated into a polymer matrix. Structural characterization by FTIR confirmed the successful integration of coumarin into the polymer through the reduction of O–H signals and the presence of characteristic C=O and C–F bands. UV-Vis analysis revealed a strong absorption peak at 281 nm, consistent with the π→π* transitions of the coumarin core. Comparative antifouling tests demonstrated the limited performance of commercial paint (Micron Extra EU), which showed surface degradation and microbial colonization over time. In contrast, coatings formulated with the perfluorocoumarin surfactant exhibited excellent resistance to biofouling, surface integrity, and anti-corrosion performance. The hybrid system also showed anti-graffiti behavior and mechanical robustness. These findings highlight the potential of this eco-friendly surfactant for advanced marine applications, though further studies on long-term durability are recommended.