Surface modification of fluoropolymers with vacuum ultraviolet irradiation
| Autor: | F. D. Egitto, J. A. Zimmerman, Luis J. Matienzo |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
chemistry.chemical_classification
Materials science Polytetrafluoroethylene Analytical chemistry Surfaces and Interfaces Polymer Condensed Matter Physics Surfaces Coatings and Films Amorphous solid Contact angle chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Surface modification Tetrafluoroethylene Irradiation |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 12:2662-2671 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/1.579086 |
| Popis: | Amorphous fluoropolymers (AF) have recently been developed to provide several favorable characteristics not present in the more crystalline materials. However, these polymers have not been fully characterized and reports of surface modification are not extensive. This work presents results of surface analysis and modification with vacuum ultraviolet (VUV) irradiation of Teflon‐AF‐2400 using contact angle measurements, x‐ray photoelectron spectroscopy (XPS), and laser‐assisted Fourier transform mass spectroscopy (FTMS). Results are compared to those for other, more crystalline, fluoropolymers, namely, poly(tetrafluoroethylene) (PTFE) and the copolymer of tetrafluoroethylene and perfluoroalkoxyvinyl ether (PFA). These three fluoropolymers differ in structure and amount of oxygen that they contain. Samples were irradiated for sixty minutes downstream from a helium microwave plasma, in some instances through a LiF crystal filter. In the latter case, modification is due solely to photons with wavelengths great... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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