Decomposition of perfluoropolyethers during XPS measurements

  • Pan F
  • Lin Y
  • Horng S
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 20

    Citations

    Citations of this article.

Abstract

Decomposition during XPS measurements of a perfluoropolyether (PFPE) lubricant applied to a gold film has been studied by XPS and mass spectrometry. The decomposition is probably initiated inside the sample either by X-ray photons or secondary electrons created by the photoelectric effect, or by both. The desorption patterns and XPS spectra show that the decomposition behavior for X-ray irradiation is similar to that for electron bombardment. According to XPS results, under X-ray exposure the -O-CF2-O- unit is the most fragile part in the polymer. Both the X-ray-induced and the electron-induced desorption spectra reveal that OCF2, CO2and C2F6are the primary gas products. A flurocarbonaceous layer with little oxygen content is formed on the gold film surface after X-ray irradiation. The fluorocarbonaceous layer is composed of a straight-chain structure and a cross-linked structure, and probably contains conjugated carbons. © 1991.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Fu Ming Pan

  • Yuh Lin Lin

  • Shean Ren Horng

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free