The latter in the case of Ar + ion bombardment is reflected by prevailing degradation of the surface layer of HDPE. The former diminishes for the highest ion doses, however, creation of molecular oxygen cannot be excluded. ![]() Both of them produce oxidation and lead to significant release of hydrogen. The results point on two mechanisms taking place simultaneously: ionization of polymer macromolecules and chain scission––resulting in creation of macroradicals. The consequences of the modification were studied with TOF-SIMS and FTIR-IRS techniques. This paper has been focused on structural changes of the surface layer. He + ions of energy 100 keV or Ar + ions of energy 130 keV were applied in the range of dose 1–30 × 10 15/cm 2 or 1–100 × 10 14/cm 2, respectively. ![]() Press-moulded, high density polyethylene (HDPE) samples were subjected to ion bombardment and effects of the modification studied.
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