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Synthesis of Peroxide‐curable Butyl Rubber via Suzuki–miyaura Coupling of Halogenated Butyl Rubber with 4‐Vinylphenylboronic Acid by Katsuhiko Takenaka; Masumi Suzuki; Hiroki Takeshita; Masamitsu Miya; Tomoo Shiomi; Kenji Tamamitsu; Toshihiro Konda is a Materials Science article available to read on EtoBox.
What is Synthesis of Peroxide‐curable Butyl Rubber via Suzuki–miyaura Coupling of Halogenated Butyl Rubber with 4‐Vinylphenylboronic Acid about?
## Abstract The Suzuki–Miyaura coupling reaction of brominated butyl rubber (BIIR) and/or chlorinated butyl rubber with a mixture of 4‐vinylphenylboronic acid and phenylboronic acid was carried out in THF under various conditions using a di‐μ‐chlorobis [5‐hydroxy‐2‐[1‐(hydroxyimino‐κN)ethyl]phenylκC] palladium(II) dimer, which is a type of cyclopalladated complex, as a catalyst. When BIIR and a small amount (Pd/Br ≈ 1/1000) of complex were used as the substrate and catalyst, respectively, a 4‐vinylphenyl and phenyl group could be introduced to butyl rubber in a high yield. Isomerization of the exo carbon–carbon double bond in BIIR was observed during the coupling reaction to give a __cis__ and __trans__ endo structure. The peroxide curing behavior of the resulting polymer at 170 °C indicated that the polymer could be cured by dicumyl peroxide, and the maximum torque of the resulting material, which reflects the crosslink density, was controllable by the composition of the boronic acids used. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
Who reads Synthesis of Peroxide‐curable Butyl Rubber via Suzuki–miyaura Coupling of Halogenated Butyl Rubber with 4‐Vinylphenylboronic Acid?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Katsuhiko Takenaka; Masumi Suzuki; Hiroki Takeshita; Masamitsu Miya; Tomoo Shiomi; Kenji Tamamitsu; Toshihiro Konda
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)
- Published
- 2011
- Language
- EN
- Field
- Materials Science (Physical Sciences)