Abstract

NGORORABANGA, Jean Marie Vianney; OKERIO, Jaspher  and  MAMA, Neliswa. Synthesis of Fluorescent Poly(coumarin-triazoles) via a CuAAC 'click' reaction. S.Afr.j.chem. (Online) [online]. 2017, vol.70, pp.89-93. ISSN 1996-840X.  https://doi.org/10.17159/0379-4350/2017/v70a12.

We describe a new fluorescent polymer system based on a coumarin-triazole functionality. The non-fluorescent 3-azido-coumarin-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.

Keywords : Coumarin, poly(coumarin-triazole); click polymerization; solubility; photophysical properties.

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