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Journal Articles

Radiation-modified PTFE as the 21st century material; Development of high function and extreme tenacity for PTFE

Udagawa, Akira*; Ikeda, Shigetoshi*; Yagi, Toshiaki

Hoshasen To Sangyo, (103), p.54 - 58, 2004/09

no abstracts in English

Journal Articles

Microfabrication of crosslinked PTFE by synchrotron radiation

Sato, Yasunori*; Yamaguchi, Daichi*; Oshima, Akihiro*; Kato, Takanori*; Ikeda, Shigetoshi*; Aoki, Yasushi*; Tanaka, Shigeru; Tabata, Yoneho*; Washio, Masakazu*

JAERI-Conf 2003-001, p.245 - 250, 2003/03

no abstracts in English

JAEA Reports

Development of polytetrafluoroethylene (PTFE) crosslinking technology by $$^{60}$$Co $$gamma$$-rays

Ikeda, Shigetoshi*; Kasai, Noboru; *; *; Haruyama, Yasuyuki; Seguchi, Tadao

JAERI-Tech 99-005, 37 Pages, 1999/02

JAERI-Tech-99-005.pdf:1.79MB

no abstracts in English

Journal Articles

Radiation induced crosslinking of polytetrafluoroethylene (PTFE)

Oshima, Akihiro; Ikeda, Shigetoshi*; Seguchi, Tadao; Tabata, Yoneho*

Preprints of 6th SPSJ International Polymer Conference, P. 237, 1997/00

no abstracts in English

Journal Articles

Temperature effect on radiation induced reactions in ethylene and tetrafluoroethylene copolymer (ETFE)

*; Ikeda, Shigetoshi*; Seguchi, Tadao; Tabata, Yoneho*

Radiation Physics and Chemistry, 50(5), p.519 - 522, 1997/00

 Times Cited Count:24 Percentile:85.55(Chemistry, Physical)

no abstracts in English

Journal Articles

Temperature effects on radiation induced phenomena in polytetrafluoroethylene (PTFE); Change of G-value

*; Ikeda, Shigetoshi*; Kudo, Hisaaki; Seguchi, Tadao; Tabata, Yoneho*

Radiation Physics and Chemistry, 50(6), p.611 - 615, 1997/00

 Times Cited Count:57 Percentile:95.79(Chemistry, Physical)

no abstracts in English

Journal Articles

Improvement of radiation resistance for polytetrafluoroethylene(PTFE) by radiation crosslinking

*; Ikeda, Shigetoshi*; Seguchi, Tadao; Tabata, Yoneho*

Radiation Physics and Chemistry, 49(2), p.279 - 284, 1997/00

 Times Cited Count:86 Percentile:98.08(Chemistry, Physical)

no abstracts in English

Journal Articles

Change of molecular motion of polytetrafluoroethylene(PTFE) by radiation induced crosslinking

*; Ikeda, Shigetoshi*; Seguchi, Tadao; Tabata, Yoneho*

Radiation Physics and Chemistry, 49(5), p.581 - 588, 1997/00

 Times Cited Count:47 Percentile:94.37(Chemistry, Physical)

no abstracts in English

Journal Articles

Improvement of radiation resistance for polytetrafluoroethylene (PTFE) by radiation cross-linking

*; Ikeda, Shigetoshi*; Seguchi, Tadao; Tabata, Yoneho*

Material Chemistry 96: Proc. of Int. Symp. on Material Chemistry in Nuclear Environment, 0, p.755 - 761, 1996/00

no abstracts in English

Journal Articles

Radiation induced crosslinking of polytetrafluoroethylene

*; Tabata, Yoneho*; Ikeda, Shigetoshi*; *; Kudo, Hisaaki; Seguchi, Tadao

JAERI-Conf 95-003, 0, p.487 - 491, 1995/03

no abstracts in English

JAEA Reports

Development of high temperature electron beam irradiation vessel

Haruyama, Yasuyuki; *; Ikeda, Shigetoshi*; Sunaga, Hiromi; Takizawa, Haruki; Seguchi, Tadao

JAERI-Tech 95-003, 18 Pages, 1995/02

JAERI-Tech-95-003.pdf:1.0MB

no abstracts in English

Oral presentation

Change of the micro structure of ultra high molecular weight polyethylene by irradiation

Enomoto, Ichiro*; Soeda, Shin*; Ikeda, Shigetoshi*; Kudo, Hisaaki*; Katsumura, Yosuke

no journal, , 

Ultra High Molecular Weight Polyethylene (UHMWPE) is applied as industrial material in many fields because it has properties of lightness in weight and of high endurance. Its surface needs to be reformed to overcome its deficit of low adhesion property toward other materials. It is known that radiation graft polymerization is effective to reform surfaces of hydrophobic polymeric materials although material properties may decrease due to scissions and oxidations induced by radiolytic radicals. It is believed that such effects of irradiations appear in amorphous regions and does not in crystalline regions. However, it is recently reported by using DSC measurement or XRD analysis that irradiations can affect not only amorphous but also crystalline region. This work investigates change of microscopic structures of UHMWPE in surface region of $$sim$$100 $$mu$$m, which is responsible for radiation graft polymerization. Analyses were conducted by combination of several techniques such as FT-IR, DSC, XRD and ESR.

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