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Hasegawa, Shin; Chen, J.; Koshikawa, Hiroshi; Iwase, Hiroki; Koizumi, Satoshi; Onuma, Masato*; Maekawa, Yasunari
no journal, ,
Radiation grafting of ethyl styrylsulfonate (EtSS) onto poly(ether ether ketone) (PEEK) film with various crystallinity was performed. The crystallinity in the range of 10
30 % has strong influence on the grafting degrees. The PEEK film with crystallinity of 1125 % showed any dose effect on grafting degrees with 60 %. By SAXS analysis, it was found that grafting process strongly depended on lamellar structure into PEEK membrane. The obtained PEEK-based polymer electrolyte membranes with about 12 
m thickness showed higher power density than that of Nafion in fuel cell test.
Saiki, Seiichi; Nagasawa, Naotsugu; Hiroki, Akihiro; Morishita, Norio; Taguchi, Mitsumasa; Seko, Noriaki; Kudo, Hisaaki*; Katsumura, Yosuke*
no journal, ,
no abstracts in English
Kasai, Noboru; Hoshina, Hiroyuki; Seko, Noriaki; Shibata, Takuya*; Takahashi, Makikatsu*
no journal, ,
no abstracts in English
Hiroki, Akihiro; Sato, Toshihiro*; Nagasawa, Naotsugu; Taguchi, Mitsumasa; Tamada, Masao
no journal, ,
no abstracts in English
Hakoda, Teruyuki; Yamamoto, Shunya; Kawaguchi, Kazuhiro; Yamaki, Tetsuya; Kobayashi, Tomohiro*; Yoshikawa, Masahito
no journal, ,
no abstracts in English
Yoshimura, Kimio; Hakoda, Teruyuki; Sugimoto, Masaki; Yamamoto, Shunya; Yoshikawa, Masahito
no journal, ,
no abstracts in English
Yamaki, Tetsuya; Nuryanthi, N.; Koshikawa, Hiroshi; Sawada, Shinichi; Hasegawa, Shin; Asano, Masaharu; Maekawa, Yasunari; Voss, K.-O.*; Trautmann, C.*; Neumann, R.*
no journal, ,
Poly(vinylidene fluoride) (PVDF) membranes with conical and cylindrical nanopores were prepared in a controlled manner by the ion-track technique, which involved heavy ion beam irradiation and subsequent alkaline etching. The etching behavior mainly depended on the energy deposition of the ion beams, and thus its depth distribution, estimated by theoretical simulation, was successfully applied to control the shapes and diameters of the etched pores. Scanning electron microscopy (SEM) and electrolytic conductometry provided an insight into the critical experimental parameters.
Sekine, Toshihiko; Sawada, Shinichi; Yamaki, Tetsuya; Koshikawa, Hiroshi; Asano, Masaharu; Suzuki, Akihiro*; Terai, Takayuki*; Maekawa, Yasunari
no journal, ,
no abstracts in English
Sawada, Shinichi; Yabuuchi, Atsushi; Maekawa, Masaki; Kawasuso, Atsuo; Maekawa, Yasunari
no journal, ,
no abstracts in English
Sugo, Yumi; Taguchi, Mitsumasa; Sasaki, Yuji; Morita, Yasuji
no journal, ,
no abstracts in English