Interaction of water vapor with gamma-radiation-induced defects in proton conductive polymers

作者: B. Tsuchiya , Y. Konishi , S. Nagata , T. Shikama

DOI: 10.1016/J.SSI.2008.12.030

关键词:

摘要: Abstract The correlation between protonic conduction and the amount of radiation-induced defects in gamma-ray-irradiated perfluorosulfonic acid (PFSA) polymers (Aciplex-SF-1004 ® ) has been investigated using a direct-current resistance method, transmission spectroscopy for ultraviolet (UV) visible (Vis) wavelength ranges Fourier transform infrared (FTIR) with attenuated total refraction (ATR) technique. proton conductivity polymers, which are irradiated dose up to 532 kGy under vacuum at room temperature subsequently exposure air, is enhanced by approximately three orders magnitude as compared that unirradiated polymer. UV–Vis spectra reveal presence fluorocarbon radicals, increase irradiation dose. It also observed FTIR peroxy free unsaturated species (COF), carboxyl group (COOH) containing carbon-oxygen double bond formed reactions radicals oxygen or water vapor air. In addition, an hydrogen concentration near-surface regions elastic recoil detection (ERD) production charge carriers such protons oxonium ions (H 3 O + interaction activating-radiation-induced leads enhancement conductivity.

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