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Structure-property relationships of miscible semi-interpenetrating network with high-strength and high-toughness composed of rubber and plastics

Research Project

Project/Area Number 21K05204
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 35020:Polymer materials-related
Research InstitutionOkayama University of Science

Principal Investigator

Osaka Noboru  岡山理科大学, 理学部, 准教授 (80550334)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords相互侵入高分子網目 / セミ相互侵入高分子網目 / 高強度化・強靭化・高弾性化 / 階層構造解析 / 構造物性相関 / ポリマーブレンド / セミ相互侵入高分子編目 / 高強度化 / 強靭化 / 高弾性化 / ゴム / 結晶性樹脂 / semi-IPN
Outline of Research at the Start

本申請者は、アクリルゴムに結晶性フッ素樹脂をブレンドして架橋を行い、セミ相互侵入高分子網目を形成させることで、ゴムの強度と靭性という通常は相反的な性質が同時的にかつ大幅に向上することを見出した。本研究ではこの架橋ブレンドゴムが理想的な相溶semi-IPNであることを実証し、階層構造と力学物性との関係を分子論的に解明し、高分子材料の力学物性の向上に新たな基礎的指針を確立することを目指す。

Outline of Final Research Achievements

By blending and crosslinking acrylic rubber (ACM) with polyvinylidene fluoride (PVDF), a crystalline fluoropolymer, the normally conflicting properties of rubber, strength and toughness, were simultaneously and significantly enhanced. We also found that ACM and PVDF were miscible when PVDF was melted, and partially miscible in the amorphous region of PVDF after crystallization of PVDF. This phase transition transformed the blend rubber from a semi-interpenetrating polymer network to a fully interpenetrating polymer network. In-situ X-ray analysis during stretching showed that the crystallinity of PVDF decreased during stretching, and that this partial destruction of the crystalline structure caused the blend rubber to become ductile and improved its mechanical properties.

Academic Significance and Societal Importance of the Research Achievements

ゴムと結晶性樹脂を部分的に相溶させるという報告例のほとんどない系を実現し、破断強度が20 MPaを超え汎用樹脂の物性値に匹敵するほど大幅に向上することを見出した。また、詳細な階層構造解析を実施することでその機構解明を行うことができた。また、ゴムの力学物性を向上させるだけではなく得られた知見に基づいて結晶化を利用したゴムの接着を提案するなど持続可能な社会の実現にも貢献する広範な成果を得ることができた。

Report

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

    (24 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 2 results) Book (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Preparation and Properties of Immiscible Poly(lactic acid)/Ethyl Cellulose Bioplastic Blends with Good Transparency and Optical Control by Drawing2024

    • Author(s)
      Osaka Noboru
    • Journal Title

      Journal of Macromolecular Science, Part B

      Volume: 63 Issue: 6 Pages: 478-496

    • DOI

      10.1080/00222348.2023.2271808

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Miscibility, Hierarchical Structures, and Enhanced Mechanical Properties of Acrylic Rubber by the Formation of a Chemically and Physically Crosslinked Partially Miscible Interpenetrating Polymer Network with Poly(vinylidene fluoride)2023

    • Author(s)
      Osaka Noboru、Takeda Natsuko、Adachi Maki、Okufuji Misaki、Osaka Rikuto
    • Journal Title

      Macromolecules

      Volume: 56 Issue: 4 Pages: 1419-1433

    • DOI

      10.1021/acs.macromol.2c02147

    • Related Report
      2022 Research-status Report
  • [Journal Article] SAXS and WAXS Studies on Miscibility and Deformation Behavior of Acrylic Rubber/poly(vinylidene fluoride) Blend2022

    • Author(s)
      Noboru Osaka、Yuichi Minematsu、Takaaki Ishihara、Natsuko Takeda
    • Journal Title

      SPring-8/SACLA Research Report

      Volume: 10 Issue: 3 Pages: 271-274

    • DOI

      10.18957/rr.10.3.271

    • ISSN
      2187-6886
    • Year and Date
      2022-06-30
    • Related Report
      2022 Research-status Report
  • [Journal Article] Enzyme Model-catalyzed Oxidative Copolymerization of Phenol while Continuously Adding an Endcap to Multi-branched Poly(phenylene oxide) Showing Low Dielectric Constant2022

    • Author(s)
      Nakano Akiyuki、Kubota Yuto、Osaka Noboru、Higashimura Hideyuki
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 4 Pages: 420-423

    • DOI

      10.1246/cl.210797

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Flame retardance-donated lignocellulose nanofibers (LCNFs) by the Mannich reaction with (amino-1,3,5-triazinyl)phosphoramidates and their properties2022

    • Author(s)
      Ono Fumiaki、Okihara Takumi、Osaka Noboru、Nagaoka Noriyuki、Kameoka Yuji、Ishikawa Akira、Ooki Hironari、Ito Takumi、Todome Daisuke、Uemoto Shinya、Furutani Mitsuaki、Inokuchi Tsutomu、Okada Kenji
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 6 Pages: 3300-3308

    • DOI

      10.1039/d1ra08716a

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Preparation and Mechanical, Thermal and Oil-resistance Properties of Acrylic Rubber Nanocomposites Reinforced with Cellulose Nanocrystals2021

    • Author(s)
      Osaka Noboru、Ochi Takumi、Ono Fumiaki、Okada Kenji
    • Journal Title

      Journal of Macromolecular Science, Part B

      Volume: 60 Issue: 4 Pages: 272-285

    • DOI

      10.1080/00222348.2020.1845498

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] ゴムと樹脂からなる相互侵入高分子網目の結晶化を利用した自己修復性2023

    • Author(s)
      大坂 陸人、大坂 昇
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 結晶化を利用したゴムの自己修復性2023

    • Author(s)
      大坂 陸人、大坂 昇
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 結晶化を利用したゴムの接着性2023

    • Author(s)
      大坂 陸人、大坂 昇
    • Organizer
      2023年繊維学会秋季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 結晶化を利用したゴムの接着性2023

    • Author(s)
      大坂 陸人、大坂 昇
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高強度・高靭性な相溶ブレンドゴムを基材にしたイオン液体ゲル電解質の開発2022

    • Author(s)
      前田 慈温、勝目 龍太郎、大坂 昇
    • Organizer
      2022年繊維学会秋季研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] 結晶化を利用した部分相溶な相互侵入高分子網目の自己修復性2022

    • Author(s)
      大坂 陸人、大坂 昇
    • Organizer
      2022年繊維学会秋季研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] ハロゲンフリーかつ低環境負荷な難燃性リグノセルロースナノファイバーの作製2022

    • Author(s)
      留目 大輔、大坂 昇、岡田 賢治、井口勉
    • Organizer
      2022年繊維学会秋季研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] リグのセルロースナノファイバーの難燃化と水性ウレタン塗料との複合化2022

    • Author(s)
      留目 大輔、大坂 昇、岡田 賢治、井口勉
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ゴムと結晶星樹脂からなる相溶セミ相互侵入高分子網目の相転移挙動と階層構造2022

    • Author(s)
      大坂 陸人、奥藤 未来、大坂 昇
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Preparation and properties of partially miscible semi-interpenetrating polymer networks composed of rubber and semi-crystalline polymer2022

    • Author(s)
      Noboru Osaka, Misaki Okufuji, Riuto Osaka
    • Organizer
      The 16th Asian Textile Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Preparation of lignocellulose nanofibers modified with brominated flame retardants and their application to water-soluble urethane2022

    • Author(s)
      Daisuke Todome, Noboru Osaka
    • Organizer
      The 16th Asian Textile Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] アクリルゴムとポリフッ化ビニリデンからなる相溶セミ相互侵入高分子網目の相転移挙動と階層構造2022

    • Author(s)
      大坂 陸人、奥藤 未来、大坂 昇
    • Organizer
      2022年繊維学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 臭素系難燃剤を化学修飾したリグノセルロースナノファイバーの合成および水性ウレタンへの複合化2021

    • Author(s)
      留目 大輔、長尾 直希、大坂 昇、岡田 賢治、井口 勉
    • Organizer
      一般社団法人プラスチック成形加工学会第32回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 臭素系難燃剤を化学修飾したリグノセルロースナノファイバーの作成と水性ウレタン塗料への展開2021

    • Author(s)
      留目 大輔、長尾 直希、大坂 昇、岡田 賢治、井口 勉
    • Organizer
      2021年繊維学会年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ゴムと結晶性樹脂からなるセミ相互侵入高分子網目の相溶性と階層構造2021

    • Author(s)
      大坂 昇、奥藤 未来
    • Organizer
      日本ゴム協会2021年年次大会
    • Related Report
      2021 Research-status Report
  • [Book] 高圧力の科学・技術事典(分担:ポリマーアロイの相分離)2022

    • Author(s)
      日本高圧力学会
    • Total Pages
      500
    • Publisher
      朝倉書店
    • ISBN
      9784254102970
    • Related Report
      2022 Research-status Report
  • [Book] 高圧力の科学・技術事典(分担:水溶性高分子)2022

    • Author(s)
      日本高圧力学会
    • Total Pages
      500
    • Publisher
      朝倉書店
    • ISBN
      9784254102970
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 水性塗料2021

    • Inventor(s)
      大坂昇、岡田賢治、井口勉、留目大輔
    • Industrial Property Rights Holder
      大坂昇、岡田賢治、井口勉、留目大輔
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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

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