On February 13, 2020, Yang, Long; Huang, Yujie; Peng, Yuting; Liu, Fei; Zhang, Qingchun; He, Huichao; Wang, Jun; Jiang, Long; Zhou, Yong published an article.Recommanded Product: 123-25-1 The title of the article was Pyridine-Diketopyrrolopyrrole-Based Novel Metal-Free Visible-Light Organophotoredox Catalyst for Atom-Transfer Radical Polymerization. And the article contained the following:
In the field of electronics, organocatalysts are in high demand for use in the synthesis of clean polymers using solar radiation rather than potentially contaminating metals. Combining theor. design, simulation, and experiments, this work presents a novel, pyridine-diketopyrrolopyrrole (P-DPP)-based metal-free visible-light organophotoredox catalyst (P-DPP). It is effective in the photocontrolled organocatalytic atom-transfer radical polymerization (O-ATRP) of Me methacrylate (MMA) and styrene. The use of this catalyst and white light-emitting diode (LED) irradiation produces polymers with a crosslinked feature. In O-ATRP, the P-DPP catalyst has an oxidative quenching catalytic mechanism with an excited-state reductive potential of -1.8 V, fluorescence lifetime of 7.5 ns, and radical-cation oxidative potential of 0.45 V. Through mol. simulation, we found that the adjacent pyridine group is key to reducing the alkyl halide initiator and generating radicals, while the diketopyrrolopyrrole core stabilizes the triplet state of the catalyst through intramol. charge transfer. The findings related to this novel photoredox catalyst will aid in the search for much more effective organophotoredox catalysts for use in controlled radical polymerization They will also be of value in the fields of polymer chem. and physics and in various applications. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Recommanded Product: 123-25-1
The Article related to pyridine diketopyrrolopyrrole visible light organophoto redox catalyst atrp, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Recommanded Product: 123-25-1
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