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Radiation Physics and Chemistry | 1996

Temperature effects on radiation induced phenomena in polymers

Tabata Yoneho; Oshima Akihiro; Takashika Kazunobu; Seguchi Tadao

Abstract Temperature dependence of radiation induced effect on polytetrafluoroethylene and polystyrene was examined. Polytetrafluoroethylene is crosslinked just above the melting temperature. Effective chain scission takes place at relative high temperatures below the melting point. However, less chain scission occurs at a cryogenic temperature 77 K. Polystyrene is crosslinked effectively at room temperature, while it is degraded at high temperatures above the glass transition temperature. Significant differences in their radiation effect between atactic and syndiotactic structures, as well as between amorphous and crystalline states were observed.


Archive | 1994

MODIFIED POLYTETRAFLUOROETHYLENE AND PRODUCTION THEREOF

Tabata Yoneo; Otohata Kazue; Ikeda Tetsuya; Ueno Koji; Yoshida Yuichi; Oshima Akihiro; Seguchi Tadao; Kudo Hisaaki


Archive | 2002

MODIFIED FLUORORESIN COATED MATERIAL AND METHOD FOR PRODUCING THE SAME

Ikeda Shigetoshi; Oshima Akihiro; Udagawa Chie; Tabata Yoneo


Archive | 1999

PRODUCTION OF MODIFIED FLUORORESIN

Ikeda Shigetoshi; Oshima Akihiro; Otohata Kazue; Tabata Yoneo


Archive | 1997

SLIDING PART MATERIAL

Seguchi Tadao; Kasai Noboru; Nakayama Akinari; Yagyu Hideki; Tabata Yoneo; Otohata Kazue; Ikeda Shigetoshi; Oshima Akihiro; Morozumi Mitsuharu; Nomura Masumi


Archive | 1995

PRODUCTION OF MODIFIED POLYTETRAFLUOROETHYLENE

Seguchi Tadao; Kudo Hisaaki; Otohata Kazue; Tabata Yoneo; Oshima Akihiro


Archive | 2000

ULTRAFINE POWDERY CROSSLINKED POLYTETRAFLUOROETHYLENE RESIN AND PREPARATION THEREOF

Ikeda Shigetoshi; Oshima Akihiro; Tabata Yoneo


Archive | 2000

FLUORORESIN COMPOSITE MATERIAL AND ITS PRODUCTION

Oshima Akihiro; Udagawa Takashi; Morita Yosuke; Seguchi Tadao; Tabata Yoneo


Archive | 1999

MODIFIED FLUORORESIN AND ITS PRODUCTION

Ikeda Shigetoshi; Seguchi Tadao; Oshima Akihiro; Tabata Yoneo


Archive | 2005

TETRAFLUOROETHYLENE POLYMER ALLOY AND METHOD FOR PRODUCING THE SAME

Oshima Akihiro; Ikeda Shigetoshi; Miura Takaharu; Tabata Yoneo; Washio Masaichi; Katsumura Yasusuke; Asano Morito; Ichizuri Shogo; Muto Fumihiro; Iida Minoru

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Seguchi Tadao

Japan Atomic Energy Research Institute

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Tagawa Seiichi

Japan Atomic Energy Agency

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Washio Masakazu

Japan Atomic Energy Agency

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Kanazawa Shinichi

Japan Atomic Energy Research Institute

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