Effects of Diphenyl Dichalcogenides on the Radical Polymerization of Diethynyl Disulfide Derivative |
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| Authors: | Akiko Nakahashi Eisuke Miyoshi Kensuke Naka Yoshiki Chujo |
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| Affiliation: | (1) Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan;(2) Department of Chemistry and Materials Technology, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan |
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| Abstract: | Radical reaction of bis(4-prop-2-ynyloxyphenyl) disulfide (1) with 2,2′-azobis(isobutyronitrile) as an initiator provided a polymer with dithioalkene units (2). The 1H and 13C NMR spectra of 2 showed that 2 had mainly E-form dithioalkene structure. The radical reactions of 1 and diphenyl diselenide (3) or diphenyl ditelluride (5) were also carried out. At higher temperature than 70 °C, polymers were obtained with less amount of AIBN than in the case
of the homopolymerization of 1. Addition of 3 or 5 in the reaction mixture appeared to promote the radical reaction. Moreover, the obtained structure has high contents of thio-seleno
alkene or thio-telluro alkene than expected, which is due to difference of the chalcogen radical reactivity and difference
of capture ability of the dichalcogenide.
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| Keywords: | Bismetallation reaction Dithioalkene structure Inorganic-centered radicals Inorganic polymers Radical polymerizaiton |
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