Surface modification of polytetrafluoroethylene by synchrotron radiation

Yasunori Sato*, Daichi Yamaguchi, Takanori Katoh, Shigetoshi Ikeda, Yasushi Aoki, Akihiro Oshima, Yoneho Tabata, Masakazu Washio

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

15 Citations (Scopus)


Surface modification of polytetrafluoroethylene (PTFE) films by the irradiation using synchrotron radiation (SR) below the melting temperature was studied. The changes in chemical structures, surface compositions and thermal properties of the SR-irradiated PTFE were examined by solid-state 19F NMR, X-ray photoelectron spectroscopy (XPS) and differential scanning calorimetry (DSC), respectively. In order to investigate the degree of modification as a function of depth from the irradiated surface, some PTFE thin films were stacked in layers under vacuum and then they were irradiated with SR. It was found that crosslinking reaction was induced by SR-irradiation in the solid-state within 50 μm from the exposed surface and chain scission was dominant at deeper layers.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-4
Publication statusPublished - 2003 Aug
EventIonizing Radiation and Polymers - Sainte-Adele, QUE, Canada
Duration: 2002 Sept 212002 Sept 26


  • Crosslinking
  • Etching
  • PTFE
  • Solid-state F NMR
  • Synchrotron radiation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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