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Article Dans Une Revue ACS Omega Année : 2020

Divanillin-Based Polyazomethines: Toward Biobased and Metal-Free π-Conjugated Polymers

Résumé

Divanillin was synthesized in high yield and purity using Laccase from Trametes versicolor. It was then pol-ymerized with Benzene-1,4-diamine and 2,7-diaminocarbazole to form polyazomethines. Polymerizations were performed under microwave irradiation and without transition-metal based catalyst. These bio-based conjugated polyazomethines present a broad fluorescence spectrum ranging from 400 to 600 nm. Depending on the co-monomer used, polyazomethines with molar masses around 10 kg.mol-1 and with electronic gaps ranging from 2.66 to 2.85 eV were obtained. Furthermore, TD-DFT calculations were performed to corroborate experimental results.

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hal-02499195 , version 1 (05-03-2020)

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Guillaume Garbay, Lauriane Giraud, Sai Manoj Gali, Georges Hadziioannou, Etienne Grau, et al.. Divanillin-Based Polyazomethines: Toward Biobased and Metal-Free π-Conjugated Polymers. ACS Omega, In press, ⟨10.1021/acsomega.9b04181⟩. ⟨hal-02499195⟩
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