A novel synthetic route to poly(β-ketone)s via poly(alkoxyethyne)s

Shin Ichiro Shoda, Akio Komenoi, Tomochika Fujioka, Yasunori Okumura, Shiro Kobayashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Isopropoxyethyne (1a) and tert-butoxyethyne (1b) were polymerized using group 5 and 6 transition metal catalysts to give poly(isopropoxyethyne) (2a) and poly(tert-butoxyethyne) (2b), respectively. The weight-average molecular weight (M̄w) of the resulting poly(alkoxyethyne)s was up to 1.0 × 104. Among the transition metal catalysts, a tungsten alkoxide or a molybdenum alkoxide having low Lewis acidity were found to effectively promote the polymerization without causing side reactions. Poly(tert-butoxyethyne) was successfully converted to poly(β-ketone) 3 by acid hydrolysis of the tert-butyl vinyl moiety.

Original languageEnglish
Pages (from-to)633-640
Number of pages8
JournalMacromolecular Chemistry and Physics
Issue number2
Publication statusPublished - 1996 Feb

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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