We describe a new fluorescent polymer system based on a coumarin-triazole functionality. The non-fluorescent 3-azidocoumarin-alkyne monomers are polymerized in a step-growth manner via a Cu (I)-catalyzed 1,3-dipolar cycloaddition (CuAAC) reaction. The process involves the conversion of a quenching azide group to 1,2,3-triazole in the monomer that leads to an increase in the intensity of fluorescence in the new polymer. The solubility and photophysical properties of the polymer were enhanced through co-polymerization with an aliphatic co-monomer.
KEYWORDSCoumarin, poly(coumarin-triazole), click polymerization, solubility, photophysical properties.
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