Triaryl(1-pyrenyl)bismuthonium salts: efficient photoinitiators for cationic polymerization of oxiranes and a vinyl ether |
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| Authors: | Matano Yoshihiro Shinokura Tomonori Yoshikawa Osamu Imahori Hiroshi |
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| Institution: | Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan. matano@scl.kyoto-u.ac.jp |
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| Abstract: | Photoirradiation of triaryl(1-pyrenyl)bismuthonium salts in acetonitrile afforded triarylbismuthanes and pyrene, accompanied by the generation of protic acids. Triaryl(1-pyrenyl)bismuthonium hexafluoroantimonates have proven to behave as efficient photoinitiators for cationic polymerization of oxiranes and a vinyl ether, affording the corresponding polymers in good yields within 1 min. |
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