4.8 Article

Photoinduced Switching from Living Radical Polymerization to a Radical Coupling Reaction Mediated by Organotellurium Compounds

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 12, Pages 5536-5539

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja300869x

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Funding

  1. Core Research for Evolution Science and Technology (CREST) of the Japan Science and Technology Agency
  2. Toray Science and Technology Grant
  3. Grants-in-Aid for Scientific Research [24109005] Funding Source: KAKEN

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An efficient and simple method for the synthesis of symmetric macromolecules by photoinduced switching from radical polymerization to a radical coupling reaction is reported. Structurally well-defined telechelic polyisoprenes and ABA-triblock copolymers were prepared by successive organotellurium-mediated living radical polymerization (TERP) under thermal conditions, followed by a polymer-end radical coupling reaction under photoirradiation.

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