Chemical surface modification on polytetrafluoroethylene films by vacuum ultraviolet excimer lamp irradiation in ammonia gas atmosphere
- 6 May 1996
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 68 (19) , 2648-2650
- https://doi.org/10.1063/1.116269
Abstract
Irradiation of polytetrafluoroethylene films with vacuum UV light in an ammonia gas atmosphere resulted in a hydrophilicsurface, where abstraction of fluorine atoms, and introduction of nitrogen, oxygen, and hydrogen atoms occurred. We used Kr2 * and Xe2 * excimer lamps at wavelength of 146 and 172 nm, respectively. The reaction mechanism for chemical surface modification is discussed on the basis of x‐ray photoelectron spectroscopy,secondary ion mass spectroscopy, and attenuated total reflectionFourier transform infrared spectroscopy analyses.Keywords
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