Preparation of the crosslinked polyethersulfone films by high-temperature electron-beam irradiation

Jingye Li, Akihiro Oshima, Takaharu Miura, Masakazu Washio

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The radiation-crosslinked polyethersulfone (RX-PES) films were prepared by means of electron-beam irradiation under nitrogen atmosphere at 230 °C, where the temperature is around the glass transition temperature of PES (222 °C). The gel formation of RX-PES films was observed when the absorbed doses exceeded 300 kGy, which indicated the crosslinking structure formation. The G(S) of 0.10 and G(X) of 0.23 were calculated according to the Y-crosslinking mechanism. The irradiation was also performed at ambient temperature for comparison. There was no gel formation of the irradiated films even for the absorbed doses as high as 2250 kGy. The thermal properties of the original and irradiated PES films were measured by means of DSC and TGA analyses. The chemical structure of the original and the irradiated films was analyzed by means of FT-IR ATR and UV-vis spectroscopies.

Original languageEnglish
Pages (from-to)2867-2873
Number of pages7
JournalPolymer Degradation and Stability
Volume91
Issue number12
DOIs
Publication statusPublished - 2006 Dec 1

Keywords

  • Crosslinking
  • Glass transition temperature
  • High-temperature electron-beam irradiation
  • Polyethersulfone films

ASJC Scopus subject areas

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

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