Incorporation of coumarin-based fluorescent monomers into co-oligomeric molecules

Teixeira, Edgar; Lima, João C.; Parola, A. Jorge; Branco, Paula S.

http://hdl.handle.net/10362/58204

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With the purpose of modifying organic fluorescent dyes based on the coumarin scaffold, and developing and evaluating a route to its incorporation into a polymeric backbone, a study was conducted on the co-polymerization of 3-vinylcoumarins with styrene and methyl acrylate using 2,2-azobis(isobutyronitrile) (AIBN) as the radical initiator. The structural and photophysical characterization proved the incorporation of the coumarin monomers into the polymeric chain and further showed a decrease in the fluorescence quantum yields in the co-oligomers.

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This work was supported by the Associate Laboratory for Green Chemistry-LAQV which is financed by national funds from FCT/MCTES (UID/QUI/50006/2013; 30951/02/SAICT/2017-SAICT) and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007265). The National NMR Facility is supported by Fundacao para a Ciencia e Tecnologia (RECI/BBB-BQB/0230/2012). We acknowledge the Laboratorio de Analises REQUIMTE for the technical support for the mass spectrometry analyses.