Invention of organotellurium and organostibine mediators for highly controlled degenerative transfer polymerization

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概要

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• Polymer-end mimetic organotellurium and organostibine compounds mediate highly controlled living radical polymerizations that allow the molecular weight to be controlled accurately and give well-defined end-groups. A variety of both conjugated (including styrene, acrylate and methacrylate derivatives) and unconjugated monomers (including 1-vinyl-2-pyrrolidinone and vinyl acetate) have been successfully polymerized in a controlled manner. The higher controllability of organotellurium- and organostibine-mediated polymerization compared to organoiodine-mediated polymerization is due to the faster degenerative transfer of organotellanyl and organostibino groups compared to iodine atom. AB-diblock, ABA-triblock and ABC-triblock copolymers have also been synthesized by the successive addition of different families of monomers. Transformations of the end-groups via radical and ionic reactions yielded polymers with a range of different functional groups and well-defined structures. (Communicated by Hitosi NOZAKI, M.J.A.)

• 日本学士院の論文

著者

• Yamago Shigeru

  Division Of Molecular Materials Science Graduate School Of Science Osaka City University

• YAMAGO Shigeru

  Division of Molecular Material Science, Graduate School of Science, Osaka City University, and PRESTO, Japan Science and Technology Agency

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• Invention of organotellurium and organostibine mediators for highly controlled degenerative transfer polymerization
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