UV-irradiation polymerization of bis-EDOT methane derivatives and their application for Br2 detection. (4th June 2021) - Qian, Junning
Abstract: Differing from traditional polymerization methods, here we synthesized two kinds of poly(bis-EDOT methane) derivatives through the polymerization of dihalogen substituted 5, 5'-(phenylmethylene)bis(2, 3-dihydrothieno [3, 4-b] [1, 4]dioxine) under 254 nm-UV condition. Related polymerization processes were later confirmed with FT-IR, UV–vis and GPC methods. Especially, we found that the C/C contact distance plays an important role in UV-assisted polymerization by X-ray single crystal technology. This particular finding, we believe it will give a bright future for the further development of such a polymerization method. Additionally, by investigating the local structures of prepared polymers during the doping and de-doping processes, we successfully applied them as the chemosensors for Br2 detection. Graphical abstract: Image 1 Highlights: Poly(bis-EDOT methane) derivatives were obtained through UV-254 polymerization. Carbon/Carbon contact distance in monomer crystal plays an important role in UV polymerization. The polymer was explored as chemosensors for Br2 detection.