126170.fig.009a
(a)
126170.fig.009b
(b)
126170.fig.009c
(c)
Figure 9: (a) line of XPS fitted spectra of UHMWPE before and after PIII treatment with Ar ions of 20 keV energy and 1016 ions/cm2 fluence. Untreated polyethylene has 532.5 eV low intensity line of oxygen in C O bond. The PIII-treated polyethylene has two  lines: 532.5 eV of C O and N O bonds and 533.8 eV of C–O and N–O bonds. (b) line of XPS fitted spectra of UHMWPE before and after PIII treatment with Ar ions of 20 keV energy and 1016 ions/cm2 fluence. The untreated polyethylene does not contain nitrogen. The PIII-treated polyethylene has two  lines: 399.2 eV of C N and N O bonds and 400.1 eV of C–N and N–O bonds. (c) line of XPS fitted spectra of UHMWPE before and after PIII treatment with Ar ions of 20 keV energy and 1016 ions/cm2 fluence. The untreated polyethylene has singlet line at 285 eV. The PIII-treated polyethylene has a number of  lines: 284.5 eV and 285 eV of hydrocarbon bonds, and 285.8, 286.8, 288, and 289.5 eV of carbon in various oxygen and nitrogen bonds.