• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Polymer Science at an Interface with Good Solvents - Aggregation States and Dynamics in the Outermost Region of Hydrogels -

Research Project

Project/Area Number 20H02790
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionKyushu University

Principal Investigator

Tanaka Keiji  九州大学, 工学研究院, 教授 (20325509)

Co-Investigator(Kenkyū-buntansha) 春藤 淳臣  九州大学, 工学研究院, 准教授 (40585915)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywords高分子界面 / ハイドロゲル / 凝集状態 / ダイナミクス / 粒子追跡法 / 表面・界面 / 分子鎖凝集状態 / 分子鎖ダイナミクス / 生体不活性
Outline of Research at the Start

本研究では、水中における高分子ハイドロゲルの最外層を「良溶媒と接触した高分子界面」と捉え、その凝集状態およびダイナミクスを明らかにすることを目的とする。特に、界面近傍における架橋密度の深さ方向分布、界面最外領域に存在するダングリング鎖の静的・動的挙動を独自の方法論で解析し、理解を深化させる。本研究は、ゲル最外領域におけるセグメントレベルのキャラクタリゼーションとしても特徴がある。ゲル最外領域に存在するダングリング鎖は擬ブラシ構造を形成するという仮説を立てて実験を遂行する。仮説が検証できれば、高分子ゲル分野と高分子ブラシ分野を繋ぐことが可能となり、ソフト界面研究に新たな潮流を生むと期待する。

Outline of Final Research Achievements

The objective of this study was to better understand the aggregation states and dynamics of polymer chains in a polymer hydrogel at the water interface. Combining atomic force microscopy with neutron reflectivity, the depth profile of cross-linking density in the interfacial region as well as the static and dynamic behaviors of dangling chains were successfully discussed. We also conducted particle tracking measurements so that the viscoelastic functions such as storage and loss moduli of the hydro gel at the water interface were discussed. Based on these results, it was claimed that the energy dissipation due to dangling chains in the interfacial region with water is related to the friction behavior of the gel. We finally discussed the relationship between the aggregation states and dynamics of the hydrogel interface and the platelet adhesion on it. We hope that the above-mentioned results are useful to design and construct polymer materials functioned at the water interface.

Academic Significance and Societal Importance of the Research Achievements

本研究はハイドロゲル界面に着目しながらも、液体界面、特に、良溶媒界面における高分子研究と捉えており、他のゲル研究とは一線を画している。また、「ゲル表面は擬ブラシ構造である」という結論は、我が国が得意とするゲル研究とポリマーブラシ研究を繋ぐことが出来、その波及効果は極めて大きい。本研究で得られる成果は、高分子物理化学へ貢献できることはもちろん、表面・界面科学や材料科学にも大きなインパクトを与える。また、本成果は、ライフ・グリーンイノベーションに資する機能性ナノ材料創製へも繋がることから、社会経済へも貢献できると期待する。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (42 results)

All 2023 2022 2021 2020

All Journal Article (15 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 15 results,  Open Access: 1 results) Presentation (23 results) (of which Int'l Joint Research: 7 results,  Invited: 21 results) Book (3 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Direct Visualization of Cooperative Adsorption of a String-Like Molecule Onto a Solid2022

    • Author(s)
      Morimitsu Yuma、Matsuno Hisao、Oda Yukari、Yamamoto Satoru、Tanaka Keiji
    • Journal Title

      Science Advances

      Volume: 8 Issue: 41 Pages: 6349-6349

    • DOI

      10.1126/sciadv.abn6349

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystalline Structure, Molecular Motion and Photocarrier Formation in Thin Films of Monodisperse Poly(3-Hexylthiophene) with Various Molecular Weights2022

    • Author(s)
      Kawaguchi Daisuke、Higasayama Ayano、Ogata Yudai、Kabe Taizo、Matsushita Yushu、Tanaka Keiji
    • Journal Title

      Polymer Journal

      Volume: 55 Issue: 4 Pages: 497-505

    • DOI

      10.1038/s41428-022-00713-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Water-Induced Crystal Transition and Accelerated Relaxation Process of Polyamide 4 Chains in Microfibers2022

    • Author(s)
      Hong Jin-Hyeok、Mokudai Haruki、Masaki Takashi、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Biomacromolecules

      Volume: 23 Issue: 8 Pages: 3458-3468

    • DOI

      10.1021/acs.biomac.2c00618

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sum Frequency Generation Imaging for Semi-Crystalline Polymers2022

    • Author(s)
      Abe Tatsuki、Shimada Hironao、Hoshino Taiki、Kawaguchi Daisuke、Tanaka Keiji
    • Journal Title

      Polymer Journal

      Volume: 54 Issue: 5 Pages: 679-685

    • DOI

      10.1038/s41428-021-00613-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Change in Local Conformation of Polymer Chains at Film Surface Attached to Solid Surface2022

    • Author(s)
      Harada Rei、Kawaguchi Daisuke、Yamamoto Satoru、Tanaka Keiji
    • Journal Title

      Soft Matter

      Volume: 18 Issue: 17 Pages: 3304-3307

    • DOI

      10.1039/d1sm01833g

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modification of a Polymer Surface by Partial Swelling Using Nonsolvents2021

    • Author(s)
      Taneda Hidenobu、Yamada Norifumi L.、Nemoto Fumiya、Minagawa Yasuhisa、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Langmuir

      Volume: 37 Issue: 51 Pages: 14941-14949

    • DOI

      10.1021/acs.langmuir.1c02852

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two-Dimensional Cellular Patterning on a Polymer Film Based on Interfacial Stiffness2021

    • Author(s)
      Kawabata Kento、Totani Masayasu、Kawaguchi Daisuke、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Langmuir

      Volume: 37 Issue: 51 Pages: 14911-14919

    • DOI

      10.1021/acs.langmuir.1c02776

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local Orientation of Chains at Crystal/Amorphous Interfaces Buried in Isotactic Polypropylene Thin Films2021

    • Author(s)
      Kawaguchi Daisuke、Yamamoto Kentaro、Abe Tatsuki、Jiang Naisheng、Koga Tadanori、Yamamoto Satoru、Tanaka Keiji
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 23 Issue: 41 Pages: 23466-23472

    • DOI

      10.1039/d1cp03959h

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Near-Ambient Pressure X-ray Photoelectron Spectroscopy for a Bioinert Polymer Film at a Water Interface2021

    • Author(s)
      Hong Jin-Hyeok、Totani Masayasu、Yamamoto Takashi、Dietrich Paul M.、Thissen Andreas、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Polymer Journal

      Volume: 53 Issue: 8 Pages: 907-912

    • DOI

      10.1038/s41428-021-00485-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Poly[oligo(2-ethyl-2-oxazoline) methacrylate] as a surface modifier for bioinertness2021

    • Author(s)
      Hong Jin-Hyeok、Totani Masayasu、Kawaguchi Daisuke、Yamada Norifumi L.、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Polymer Journal

      Volume: 53 Issue: 5 Pages: 643-653

    • DOI

      10.1038/s41428-020-00459-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mesoscopic heterogeneity in a nanocellulose-containing cell storage medium2020

    • Author(s)
      Shundo Atsuomi、Matsumoto Yuji、Hayashi Hisato、Tsuruzoe Nobutomo、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      Journal of Materials Chemistry B

      Volume: 8 Issue: 21 Pages: 4570-4574

    • DOI

      10.1039/d0tb00219d

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Molecular Architecture on Conformational Relaxation of Polymer Chains at Interfaces2020

    • Author(s)
      Nguyen Hung K.、Kawaguchi Daisuke、Tanaka Keiji
    • Journal Title

      Macromolecular Rapid Communications

      Volume: 41 Issue: 21 Pages: 2000096-2000096

    • DOI

      10.1002/marc.202000096

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface Segregation of a Star-Shaped Polyhedral Oligomeric Silsesquioxane in a Polymer Matrix2020

    • Author(s)
      Yamamoto Kentaro、Kawaguchi Daisuke、Abe Tatsuki、Komino Takeshi、Mamada Masashi、Kabe Taizo、Adachi Chihaya、Naka Kensuke、Tanaka Keiji
    • Journal Title

      Langmuir

      Volume: 36 Issue: 33 Pages: 9960-9966

    • DOI

      10.1021/acs.langmuir.0c01785

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design of a Bioinert Interface Using an Amphiphilic Block Copolymer Containing a Bottlebrush Unit of Oligo(oxazoline)2020

    • Author(s)
      Hong Jin-Hyeok、Totani Masayasu、Kawaguchi Daisuke、Masunaga Hiroyasu、Yamada Norifumi L.、Matsuno Hisao、Tanaka Keiji
    • Journal Title

      ACS Applied Bio Materials

      Volume: 3 Issue: 11 Pages: 7363-7368

    • DOI

      10.1021/acsabm.0c01118

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial Heterogeneity Accompanying Gel Formation of Poly(N-isopropylacrylamide) Aqueous Solution at a Temperature below Cloud Point2020

    • Author(s)
      Takuro Kogo, Atsuomi Shundo, Chi Wang, and Keiji Tanaka
    • Journal Title

      Macromolecules

      Volume: 53 Issue: 24 Pages: 10964-10971

    • DOI

      10.1021/acs.macromol.0c02292

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 異種固体界面における高分子の振舞い2022

    • Author(s)
      田中敬二
    • Organizer
      第47回複合材料シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 異種相界面における高分子の構造と物性2022

    • Author(s)
      田中敬二
    • Organizer
      第73回コロイドおよび界面科学討論会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Interfacial Dynamics of Polymers2022

    • Author(s)
      Keiji Tanaka
    • Organizer
      KYUSHU-SNU JOINT SYMPOSIUM Satellite Sessions
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 表面・界面のレオロジー2022

    • Author(s)
      田中敬二
    • Organizer
      第 42回レオロジー講座
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 高分子基礎物性に基づく革新的接着技術への挑戦2022

    • Author(s)
      田中敬二
    • Organizer
      2022年度高分子基礎物性研究会・高分子計算機科学研究会・高分子ナノテクノロジー研究会合同討論会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Polymer Dynamics at Solid Interfaces2022

    • Author(s)
      Keiji Tanaka
    • Organizer
      International mini-Symposium on Polymer Materials(ISPM2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高分子界面の基礎と応用~SPMへの期待~2021

    • Author(s)
      田中敬二
    • Organizer
      ブルカージャパン 続:高分子ナノ物性 オンラインセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Structure and Dynamics of Polymer Chains at Interface with Inorganic Material2021

    • Author(s)
      Keiji Tanaka
    • Organizer
      IUPAC-MACRO2020+
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 異種固体界面における高分子の構造・物性研究と接着への展開2021

    • Author(s)
      田中敬二
    • Organizer
      接着界面科学研究会PartⅦ第7回例会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 界面における高分子の振る舞い2021

    • Author(s)
      田中敬二
    • Organizer
      高分子同友会 第50回総合講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 表面・界面のレオロジー2021

    • Author(s)
      田中敬二
    • Organizer
      レオロジーイブニングセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 高分子界面の構造・物性の理解と接着現象への展開2021

    • Author(s)
      田中敬二
    • Organizer
      2021年度 第30回 構造接着・精密接着シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 界面マルチスケール4次元解析による革新的接着技術の構築と放射光への期待2021

    • Author(s)
      田中敬二
    • Organizer
      FSBL 第11回研究発表会 特別講演
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Dynamic Behavior of Polymer Chains at Solid Interfaces2021

    • Author(s)
      Keiji Tanaka
    • Organizer
      ACS Spring 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高分子界面の理解と次世代接着技術2020

    • Author(s)
      田中敬二
    • Organizer
      日本接着学会 次世代接着材料研究会PartⅦ 第8回例会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 高分子薄膜・表面・界面のダイナミクス2020

    • Author(s)
      田中敬二
    • Organizer
      日本化学会秋季事業 第10回CSJ化学フェスタ2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 今日から使える高分子材料解析法2020

    • Author(s)
      田中敬二
    • Organizer
      日本化学会秋季事業 第10回CSJ化学フェスタ2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 異種相界面における高分子の振舞と接着現象への展開2020

    • Author(s)
      田中敬二
    • Organizer
      第4回接着・接合研究シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Dynamics of Polymer Chains in Close Proximity to Solid Interface2020

    • Author(s)
      Keiji Tanaka
    • Organizer
      Jurnal Kimia Sains dan Aplikasi Webinar series on Chemistry
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 表面・界面・薄膜2020

    • Author(s)
      田中敬二
    • Organizer
      第29回ポリマー材料フォーラム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 高分子界面 ~分子レベルの理解から新産業の創出を目指して~2020

    • Author(s)
      田中敬二
    • Organizer
      学術振興会創造機能化学第116委員会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Mobility Gradient of Polymer Chains in an Interfacial Region with a Solid2020

    • Author(s)
      Keiji Tanaka
    • Organizer
      APS March Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Architecture Effect on Conformational Relaxation of Polymer Chains at an Interface2020

    • Author(s)
      Hung K. Nguyen, Daisuke Kawaguchi, Keiji Tanaka
    • Organizer
      APS March Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Book] 中性子反射率法に基づく異種相界面における分子鎖の凝集状態2023

    • Author(s)
      川口大輔、田中敬二
    • Total Pages
      8
    • Publisher
      公益社団法人日本油化学会 オレオサイエンス
    • Related Report
      2022 Annual Research Report
  • [Book] Spectroscopic Techniques for Polymer Characterization: Methods, Instrumentation, Applications, Y. Ozaki and S. Harumi Eds.2021

    • Author(s)
      D. Kawaguchi, K. Tanaka
    • Total Pages
      31
    • Publisher
      Wiley
    • Related Report
      2021 Annual Research Report
  • [Book] “第2章 物性解析、第4節 フィラー界面における分子鎖の凝集状態・熱運動性とバルク物性への効果”, ポリマーの強靱化技術最前線 ~破壊機構、分子結合制御、しなやかタフポリマーの開発~, 伊藤耕三 他監修2020

    • Author(s)
      川口大輔、杉本 晋、田中敬二
    • Total Pages
      6
    • Publisher
      株式会社エヌ・ティー・エス
    • ISBN
      9784860436681
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 生体適合性接着剤2020

    • Inventor(s)
      戸谷匡康、田中敬二、松野寿生、小澤雅昭、片山淳子
    • Industrial Property Rights Holder
      戸谷匡康、田中敬二、松野寿生、小澤雅昭、片山淳子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi