caa a22 4500 463229975 CHVBK 20180405153239.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1196-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-1196-z Influence of pre-irradiation atmosphere on the properties of polymer electrolyte membranes prepared using radiation grafting method [Elektronische Daten] [Upita Septiani, Jinhua Chen, Masaharu Asano, Yasunari Maekawa, Masaru Yoshida, Hitoshi Kubota] The influence of pre-irradiation atmosphere, argon and air, on radiation grafting of styrene into poly(ethylene-co-tetrafluoroethylene) (ETFE) films and the properties of the ETFE-based radiation-grafted polymer electrolyte membranes were investigated. The preparation and properties of the membranes were found to be strongly influenced by the γ-ray pre-irradiation atmosphere. The proton conductivity was measured in its water-saturated state at 25°C, and the membrane durability was tested in a 3% H2O2 aqueous solution at 60°C. The proton conductivity of the membrane prepared by pre-irradiation under air was higher than that of the membrane prepared under argon with the same ion exchange capacity level. However, the durability of the former was considerably lower than that of the latter. For instance, the membrane with an ion exchange capacity of about 1.0mmolg−1 prepared under argon was twice as durable as that prepared under air. It was considered that the lower durability of the membrane prepared by pre-irradiation under air was because of the unstable ether bond introduced between the graft chains and the backbone chains. Springer Science+Business Media, LLC, 2006 Septiani Upita Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, 376-8515, Kiryu, Gunma, Japan aut Chen Jinhua Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut Asano Masaharu Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut Maekawa Yasunari Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut Yoshida Masaru Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut Kubota Hitoshi Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, 376-8515, Kiryu, Gunma, Japan aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1330-1335 0022-2461 42:4<1330 2007 42 10853 https://doi.org/10.1007/s10853-006-1196-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1196-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Septiani Upita Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, 376-8515, Kiryu, Gunma, Japan aut NATIONALLICENCE 700 1- Chen Jinhua Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut NATIONALLICENCE 700 1- Asano Masaharu Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut NATIONALLICENCE 700 1- Maekawa Yasunari Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut NATIONALLICENCE 700 1- Yoshida Masaru Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki-machi, 370-1292, Takasaki, Gunma, Japan aut NATIONALLICENCE 700 1- Kubota Hitoshi Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, 376-8515, Kiryu, Gunma, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1330-1335 0022-2461 42:4<1330 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer