Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 40, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202208180
Keywords
Carbon Dots; Photo-ATRP; Porphyrins; Sensitization; Visible-Light LEDs
Categories
Funding
- Natural Science Foundation of China [31890774]
- CSC
- Projekt DEAL
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In this study, sustainable carbon dots (CDs) based on furfuraldehyde (F-CD) were synthesized and used as a photosensitive material for photopolymerization. The resulting heterogeneous material showed good electrochemical and photonic properties, enabling controlled polymerization reactions. Chain extension experiments using MMA and styrene as monomers were successful.
Sustainable carbon dots (CDs) based on furfuraldehyde (F-CD) resulted in a photosensitive material after pursuing the Alder-Longo reaction. The porphyrin moiety formed connects the F-CDs in a covalent organic network. This heterogeneous material (P-CD) was characterized by XPS indicating incorporation of the respective C, N and O moieties. Time resolved fluorescence including global analysis showed contribution of three linked components to the overall dynamics of the excited state. Electrochemical and photonic properties of this heterogeneous material facilitated photopolymerization in a photo-ATRP setup where either CuBr2/TPMA, FeBr3/Br- or a metal free reaction setup activated controlled polymerization. Chain extension experiments worked in all three cases showing end group fidelity for activation of controlled block copolymerization using MMA and styrene as monomers. Traditional radical polymerization using a diaryl iodonium salt as co-initiator failed.
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