Temperature effect on the chemical composition of a polytetrafluoroethylene surface under the irradiation of synchrotron radiation by means of the X-ray photoelectron spectroscopy |
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| Institution: | 1. Graduate School of Science and Laboratory of Advanced Science and Technology for Industry, University of Hyogo, 3-1-2 Koto, Kamigori, Ako, Hyogo 678-1205, Japan;2. Graduate School of Engineering, University of Hyogo, 2167 Syosya, Himeji, Hyogo 671-2201, Japan;1. Bristol-Myers Squibb, Drug Discovery, Wallingford, CT 06492, USA;2. Bristol-Myers Squibb, Drug Product Science & Technology, Princeton, NJ 08543, USA;1. LACES (Laboratório de catálise e energia sustentável), Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil;2. Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR7177, Université de Strasbourg, France;1. Laboratory of Advanced Science and Technology for Industry, University of Hyogo, Japan;2. Okayama Prefectural University, Japan;3. Minerva Light Lab. inc, Japan |
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| Abstract: | The chemical composition and components of a polytetrafluoroethylene (PTFE) surface was investigated as a function of the temperature under the irradiation of synchrotron radiation (SR) by the X-ray photoelectron spectroscopy (XPS). When the temperature of PTFE under the SR irradiation was less than 100 °C, the C-rich surface appeared. With increasing the temperature more than 150 °C, the relative intensity of the F 1s peak to the C 1s peak increased markedly. At the temperatures of 150–180 °C, the C–C component became small and the CF2 component was dominant. With further increasing the temperature more than 200 °C, CF3, CF and C–CF components grew in addition to CF2 component. Based on these XPS results, the temperature effect on the chemical composition and components is discussed. |
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