2025/01/22 by Adèle Gapin, Elarbi Chatir, Olivier Alévêque +7 · 1 voice · 1 citation
Chemistry · Materials Science · #Bond #Business #Chemistry #Conjugated system #Covalent bond #Electron #Luminescence and Fluorescent Materials #Materials science #Nuclear physics #Organic chemistry #Photochemistry #Photochromic and Fluorescence Chemistry #Physics #Polymer #Polymer chemistry #Polymer science #Supramolecular Chemistry and Complexes
paper · pdf · doi:10.26434/chemrxiv-2025-5m3lf
published in ChemRxiv
openalex publication_date 2025/01/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We present a novel light-frozen dynamic covalent polymerization methodology to synthesize conjugated polymers based on BisAzaCoroneneDiimides (BACDs). This metal-free process converts reversible poly-imines into kinetically locked conjugated polymers using visible light, generating minimal side-products. By incorporating aldehyde-functionalized comonomers, the approach enables the creation of diverse n-type semiconducting polymers with tunable optical band gaps and low LUMO levels. The polymers exhibit exceptional thermal, electrochemical, and photostability, with strong interchain interactions upon electrochemical reduction observed in solution, attributed to the BACD core. Broad absorp-tion from the visible to near-infrared range underscores their potential in charge and energy transport applications for organic electronics. This scalable, sustainable strategy unlocks access to a versatile class of n-type diimide polymers.