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Arigane, Kenji; *; ; Seguchi, Tadao; Takahashi, Hidetake
Proc. of 4th Asian Symp. on Research Reactors, 10 Pages, 1993/00
no abstracts in English
Sugimoto, Shunichi; Kawanishi, Shunichi; Shimizu, Yuichi; Suzuki, Nobutake; *; Arai, Shigeyoshi*
RTM-91-37, p.27 - 32, 1991/00
no abstracts in English
Hasegawa, Shin; Chen, J.; Koshikawa, Hiroshi; Maekawa, Yasunari
no journal, ,
Radiation-induced graft polymerization is a fascinating technique for introducing functional polymer phases as grafting chains (grafts) directly onto polymer films allowing those films to retain their characteristics. For the purpose of the development of polymer electrolyte membrane for fuel cell, the PEMs of aromatic hydrocarbon polymers, so-called "super engineering plastics" including poly (ether ether ketone) (PEEK), have useful characteristics such as high mechanical strength, gas barrier property, and radiation resistance. The graft type PEEK PEMs with 10-81 
m thicknesses have grafting degree with 90-100% kept high tensile strength of 60 MPa. In addition to the good mechanical property, open circuit voltage in fuel cell test with these PEEK-PEM were shown more than 0.9 V. The obtained PEEK-based polymer electrolyte membranes with about 12 m thickness showed higher power density than that of Nafion in fuel cell test.
