光致聚合物
共聚物
部分
聚合
卟啉
化学
单体
光化学
高分子化学
共价键
自由基聚合
聚合物
有机化学
作者
Xiliang Luo,Jianyong Wan,Nicolai Meckbach,Veronika Strehmel,Shujun Li,Zhijun Chen,Bernd Strehmel
标识
DOI:10.1002/anie.202208180
摘要
Abstract Sustainable carbon dots ( CD s) based on furfuraldehyde (F‐ CD ) resulted in a photosensitive material after pursuing the Alder‐Longo reaction. The porphyrin moiety formed connects the F‐ CD s 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 CuBr 2 /TPMA, FeBr 3 /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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