Suppression of the oxidative degradation of polymer by sputtered silicon oxide coating

Toshitaka Oka, Yoshimasa Hama, Kenji Ito, Yoshinori Kobayashi

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


The radiation-induced oxidative degradation of polypropylene was studied. It is well known that the irradiated polymers react gradually with the air and decrease their mechanical properties for long-term storage. In this work, silicon oxide films were formed on polypropylene by sputtering to suppress the permeation of oxygen during the gamma-ray irradiation. Samples were stored in air for a long time and measured the chemical structure and the mechanical properties to obtain effects of the oxygen barrier coating. From the results, we found that such coatings have a good effect on suppressing the oxidative degradation for long-term storage.

Original languageEnglish
Pages (from-to)420-424
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-4
Publication statusPublished - 2005 Jul
Externally publishedYes
EventIonizing Radiation and Polymers Proceedings of the 6th International Symposium on Ionizing Radiation Polymers -
Duration: 2004 Sep 252004 Sep 30


  • Oxidative degradation
  • Oxygen barrier
  • Polypropylene
  • Silicon oxide

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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