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Journal Articles

Microfabrication of fluoropolymers using ion beam irradiation

Kitamura, Akane; Kobayashi, Tomohiro*

Hoshasen Kagaku (Internet), (104), p.29 - 34, 2017/10

no abstracts in English

Journal Articles

Radiation grafting of styrene into crosslinked PTEE films and subsequent sulfonation for fuel cell applications

Yamaki, Tetsuya; Asano, Masaharu; Maekawa, Yasunari; Morita, Yosuke; Suwa, Takeshi; Chen, J.*; Tsubokawa, Norio*; Kobayashi, Kazuhiro*; Kubota, Hitoshi*; Yoshida, Masaru

Radiation Physics and Chemistry, 67(3-4), p.403 - 407, 2003/08

 Times Cited Count:71 Percentile:2.33

no abstracts in English

Journal Articles

Application of excimer laser to polymer surface

Kawanishi, Shunichi

EMC : electro magnetic compatibility : solution technology : Denji Kankyo Kogaku Joho, 0(78), p.27 - 30, 1994/10

no abstracts in English

Oral presentation

Technique of microfabrication for fluoropolymers by using ion beam irradiation

Kitamura, Akane

no journal, , 

We developed three types of microfabrication for fluoropolymers using ion beam irradiation. The smooth Teflon surface becomes rough by a keV ion beam irradiation. At a high fluence, needle-like protrusions were thickly formed all over the surface. When 3-MeV proton microbeam scanned on the surface along a spiral from the center, a porous conical structure was formed. It was caused by volume expansion along the ion trajectories. Ion track membranes of poly(vinylidene fluoride) (PVDF) were developed by a track etching technique using irradiation with a 330-MeV $$^{40}$$Ar ion beam in an oxygen atmosphere. Ion tracks were etched without any oxidant. Oxidant is essential for conventional methods but it causes serious deterioration in the quality of PVDF membranes. Therefore, our technique is useful as an oxidant-free track-etching process.

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