Abstract
In this research, three organic photocatalysts, 4-(4H-dithieno[3,2-b:2′,3′-d]pyrrol-4-yl)-N,N-diphenylaniline, 4-(pyren-1-yl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole and 4-(6b,10-dihydroperylen-3-yl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole have been successfully synthesized through C-N coupling reactions. The chemical structures and the optical properties of the obtained organic photocatalysts have been characterized via1H NMR, 13C NMR, elemental analysis, and UV-Vis spectroscopy. Next, these dithieno[3,2-b:2′,3′-d]pyrrole-based photocatalysts have been used for the polymerization of methyl methacrylate, 2-(dimethylamino)ethyl methacrylate and tert-butyl methacrylate monomers under 365 nm UV irradiation, resulting in (meth)acrylate polymers with controlled molecular weights and low polydispersity indexes.
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Acknowledgment: This research was supported by The Department of Science and Technology (DOST)-Ho Chi Minh City (grant number 57/2020/HD-QPTKHCN, signed on 23 July 2020).
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Truong, N.T.T., Nguyen, T.H., Doan, B.K. et al. Organic Photocatalysts Based on Dithieno[3,2-b:2′,3′-d]pyrrole for Photoinduced Metal-Free Atom Transfer Radical Polymerization. Macromol. Res. 29, 791–799 (2021). https://doi.org/10.1007/s13233-021-9085-5
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DOI: https://doi.org/10.1007/s13233-021-9085-5