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Nanomechanical Analysis of VUV-irradiated polymeric materials for photo-activated bonding

Research Project

Project/Area Number 21H01635
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26030:Composite materials and interfaces-related
Research InstitutionKyoto University

Principal Investigator

Sugimura Hiroyuki  京都大学, 工学研究科, 教授 (10293656)

Co-Investigator(Kenkyū-buntansha) 一井 崇  京都大学, 工学研究科, 准教授 (30447908)
宇都宮 徹  京都大学, 工学研究科, 助教 (70734979)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2021: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Keywords原子間力顕微鏡 / 高分子材料 / 真空紫外光 / 接合 / ナノ力学 / 表面処理
Outline of Research at the Start

波長100~200 nmの光は真空紫外光 (Vacuum ultraviolet; VUV)と呼ばれ、酸素含有雰囲気で高分子材料表面に照射することで、材料表面を親水化できる。この技術は高分子材料の接合法として有用だが、そのメカニズムは完全には解明されていない。本研究では、原子間力顕微鏡を用いたナノスケールでの局所力学物性計測により、そのメカニズム解明を目指す。

Outline of Final Research Achievements

The surface mechanical properties of polymeric materials irradiated with vacuum ultraviolet (VUV) light were analysed by atomic force microscopy (AFM).
By combining force curve measurements using static mode AFM and surface viscoelasticity measurements using dynamic mode (AM-FM mode), an increase in the elastic modulus at the topmost surface of the sample and an increase in the adhesion force inside the sample (~ 10 nm) were successfully detected. Based on these results, we proposed a model for the reaction of VUV light on the surface of polymeric materials.

Academic Significance and Societal Importance of the Research Achievements

VUV光活性化接合は,接着剤を必要としない高分子材料の接合技術であり,高分子材料最表面のみを光加工することから,マイクロスケールの構造体に対しても構造を破壊せずに接合できる.一方で,その接合メカニズムには不明な点が多かった.本研究成果は,接合メカニズムについて重要な知見を与えるとともに,VUV光照射されたようないわば未知な高分子材料について,その力学物性計測手法として一つの指針を提供する.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (7 results)

All 2024 2023 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results)

  • [Journal Article] 真空紫外光化学による材料表面改質とマイクロ加工2023

    • Author(s)
      杉村 博之
    • Journal Title

      科学と工業 = Science and industry

      Volume: 97(4) Pages: 100-109

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vacuum ultraviolet-induced surface modification of polyoxymethylene plates for photo-activation bonding2023

    • Author(s)
      M. Gonda, T. Utsunomiya, T. Ichii, H. Sugimura
    • Journal Title

      International Journal of Adhesion and Adhesives

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] 自己組織化と自己集積化による有機単分子膜・多層膜形成2024

    • Author(s)
      杉村博之
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 酸化グラフェンの化学/光化学2024

    • Author(s)
      杉村博之
    • Organizer
      表面技術協会 界面部会・第18回研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] VUV光による高分子表面処理 -光化学反応による有機分子の結合解離と酸化-2023

    • Author(s)
      杉村博之
    • Organizer
      表面技術協会 秋季セミナー:難処理材へのめっき技術(2)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ナノ・サブナノメートルの表面技術:Self-Assembled Monolayer と Scanning Probe Microscopy2023

    • Author(s)
      杉村博之
    • Organizer
      表面技術協会 第 147 回講演大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Nanomechanical properties of VUV-irradiated cyclo-olefin polymer investigated by atomic force microscopy2021

    • Author(s)
      K. Sakamoto, T. Ichii, T. Utsunomiya and H. Sugimura
    • Organizer
      29th International Colloquium on Scanning Probe Microscopy (ICSPM29)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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