Low-Temperature Plasma-Induced Changes in the Surface Chemical Composition of Polyethylene Naphthalate Films

The results of an experimental study by X-ray photoelectron spectroscopy of the chemical composition of the surface of polyethylene naphthalate films modified by low-pressure dc discharge at the anode and cathode are presented. Filtered atmospheric air was used as the plasma gas. X-ray photoelectron spectroscopy has been used to study the change in the chemical structure of plasma-modified films and to show the formation of a significant amount of oxygen-containing groups on the polymer surface.