Journal
ACS OMEGA
Volume 5, Issue 10, Pages 5176-5181Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.9b04181
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Funding
- Solvay Company, Region Nouvelle Aquitaine
- French State grant [ANR-10-LABX-0042-AMADEus, ANR-10-IDEX-0003-02]
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Divanillin was synthesized in high yield and purity using Lactase from Trametes versicolor. It was then polymerized with benzene-1,4-diamine and 2,7-diaminocarbazole to form polyazomethines. Polymerizations were performed under microwave irradiation and without transition-metal-based catalysts. These biobased conjugated polyazomethines present a broad fluorescence spectrum ranging from 400 to 600 nm. Depending on the co-monomer used, polyazomethines with molar masses of around 10 kg.mol(-1) and with electronic gaps ranging from 2.66 to 2.85 eV were obtained. Furthermore, time-dependent density functional theory (TD-DFT) calculations were performed to corroborate the experimental results.
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