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NANOSTRINGS OF GEL PREPARED BY CROSSLINKING OF POLYMERS WITH ION BEAMS

Research Project

Project/Area Number 13650874
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 工業物理化学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KOIZUMI Hitoshi  Hokkaido Univ., Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (00175324)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsCrosslinking of Polymers / Gelation / Ionizing radiation / Ion beams / Nano technology / Polysiloxanes / Effects of radiation quality / ゲル
Research Abstract

Gelation of polydimethylsiloxane irradiated with 256 MeV Ar, 306 MeV Ne, and 204 MeV C ions was examined. The insoluble residue of the irradiated polydimethylsiloxane was separated with membrane filters. The weight of the insoluble residue was proportional to the number of irradiated ions. This result indicates that gelation occurs in the high local dose region in the ion tracks. A gel string is generated in each ion track. Formation of gel strings of polydimethylsiloxanes generated in heavy ion tracks was also observed by atomic force microscopy. The yield of the insoluble residue is proportional to initial molecular weight of polydimehylsiloxane and it depends on the ion beams. The radius of the gel strings estimated using the G-value of crosslinking for low-LET radiation and with appropriate dose distributions in the ion tracks agrees with the experimental results.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Hitoshi Koizumi: "Crosslinking of polymers in heavy ion tracks"Nuclear Instruments and Methods in Physics Research B. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi: "Chemical effects of heavy ion beams on organic materials"Nuclear Instruments and Methods in Physics Research B. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi: "Radiation-Induced Chain Reactions in Alcohol Solutions of Diphenyliodonium Salts : A High-Sensitivity Chemical Dosimeter"Radiation Research. 158. 241-246 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi: "Crosslinking of polydimethylsiloxane in heavy ion tracks"Nuclear Instruments and Methods in Physics Research B. 179. 530-535 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi, Matsumasa Taguchi, Yasuhiko Kobayashi, Tsuneki Ichikawa: "Crosslinking of polymers in heavy ion tracks"Nuclear Instruments and Methods in Physics Research B. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi, Tsuneki Ichikawa, Mitsumasa Taguchi, Yasuhiko Kobayashi, Hideki Namba: "Chemical effects of heavy ion beams on organic materials"Nuclear Instruments and Methods in Physics Research B. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi, Toshimitsu Sasaki, Tsuneki Ichikawa: "Radiation-Induced Chain Reactions in Alcohol Solutions of Diphenyliodonium Salts : A High-Sensitivity Chemical Dosimeter"Radiation Research. 158. 241-246 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi, Mitsumasa Taguchi, Yasuhiko Kobayashi, Tsuneki Ichikawa: "Crosslinking of polydimethylsiloxane in heavy ion tracks"Nuclear Instruments and Methods in Physics Research B. 179. 530-535 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hitoshi Koizumi: "Crosslinking of polymers in heavy ion track"Nuclear Instruments and Methods in Physics Research B. 208. 161-165 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hitoshi Koizumi: "Chemical effects of heavy ion beams on organic materials"Nuclear Instruments and Methods in Physics Research B. 206. 1124-1127 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hitoshi Koizumi: "Radiation-Induced Chain Reactions in Alcohol Solutions of Diphenyliodonium Salts : A High-Sensitivity Chemical Dosimeter"Radiation Research. 158・2. 241-246 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hitoshi Koizumi: "Crosslinking of polydimethylsiloxane in heavy ion tracks"Nucl. Instrum and Meth. B. 179・4. 530-535 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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