Rearrangement of the main-chain and subsequent thermal degradation of polyphenylene-ether

Shigeki Takayama, Nozomu Mathubara, Tsuyoshi Arai, Kunihiko Takeda

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18 Citations (Scopus)

Abstract

Studies of the thermal rearrangement and degradation of polyphenylene-ether (PPE) have been carried out by TGA (thermo-gravimetric analysis), GC-MS (gas chromatography-mass spectroscopy) and 1H-NMR. 2,6-Xylenol was a major scission product in the temperature range 420-700 °C, and 3,5-xylenol, as a scission product, decreased with increasing temperature. Four monomeric and eight dimeric scission products were observed at relatively high temperatures. The distribution of the scission products, which changed with increasing temperature, led to the suggestion that rearrangement of the PPE main-chain occurred to form diphenyl methylene groups, followed by thermal degradation.

Original languageEnglish
Pages (from-to)277-284
Number of pages8
JournalPolymer Degradation and Stability
Volume50
Issue number3
DOIs
Publication statusPublished - 1995

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ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Chemistry
  • Polymers and Plastics
  • Condensed Matter Physics
  • Organic Chemistry

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