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Kenji Yamaoka
山岡 賢司
Kenji Yamaoka
山岡 賢司
Graduate School of Science Department of Macromolecular Science,Assistant Professor

keyword Cross-links,Structures and physical properteis of polymers,Surfaces and interfaces,Polyme thin films,Polymer materials,Interfacial science,Rheology

Research History 3

  1. 2025/04 - Present
    The University of Osaka Graduate School of Science, Department of Macromolecular Science Assistant Professor

  2. 2023/04 - 2025/03
    Osaka University Graduate School of Science, Department of Macromolecular Science

  3. 2024/10 - 2024/12
    Hong Kong Univeristy of Science and Technology Department of Physics Visiting researcher

Education 1

  1. Mie University Graduate School of Engineering Materials Science

    2020/04 - 2023/03

Committee Memberships 3

  1. 高分子分析研究懇談会 運営委員

    2025/04 - Present

  2. 高分子学会関西支部若手幹事会 幹事

    2025/04 - Present

  3. 日本レオロジー学会 関西レオロジー研究会 幹事

    2024/04 - Present

Professional Memberships 5

  1. 日本化学会

  2. 日本中性子科学会

  3. 日本接着学会

  4. 日本レオロジー学会

  5. 高分子学会

Research Areas 4

  1. Nanotechnology/Materials / Thin-film surfaces and interfaces /

  2. Nanotechnology/Materials / Polymer chemistry /

  3. Natural sciences / Bio-, chemical, and soft-matter physics /

  4. Nanotechnology/Materials / Polymer materials /

Awards 5

  1. Rising Stars in Polymer Science 2024

    The Society of Polymer Science, Japan 2024/11

  2. SRJ Best Presentation Award

    The Society of Rheology, Japan 2024/05

  3. 日本化学会秋季事業第11回CSJ化学フェスタ2021 優秀ポスター発表賞

    日本化学会 2021/12

  4. 第70回高分子年次大会 優秀ポスター賞

    高分子学会 2021/05

  5. 優秀ポスター賞

    日本金属学会No.82研究会「微小領域の力学特性評価とマルチスケールモデリング」 2019

Papers 22

  1. Supramolecular Interface Engineering via Interdiffusion for Reusable and Dismantlable Polymer Adhesion

    Kenji Yamaoka, Takuma Wada, Iori Ogasa, Takeru Komyo, Chao Luo, Ryohei Ikura, Masahiro Hino, Masako Yamada, Hideki Seto, Yoshihisa Fujii, Yasutomo Uetsuji, Yoshinori Takashima

    Advanced Materials 2025/10/03 Research paper (scientific journal)

  2. Effect of Short-Term Thermal Annealing on the Nanostructure of Nafion Thin Films on Platinum Substrates

    Shigeki Uzuki, Masako Yamada, Reiji Kumai, Koji Michishio, Kenji Yamaoka, Yoshihisa Fujii, Ryuji Maruyama, Norifumi L. Yamada

    Langmuir 2025/09/30 Research paper (scientific journal)

  3. Effects of the Hydration States of Water Molecules on the Mechanical Properties of Dual Movable Cross-Linked Polymeric Gels

    Yusaku Kawai, Junsu Park, Ryuhei Motokawa, Ryohei Ikura, Shunsuke Murayama, Kenji Yamaoka, Yoshihisa Fujii, Yuka Ikemoto, Masaru Tanaka, Go Matsuba, Takashi Kato, Yoshinori Takashima

    ACS Applied Polymer Materials 2025/06/27 Research paper (scientific journal)

  4. Light Stimuli-Responsive Degradable and Tough Polymeric Materials with Movable Cross-Links

    Yusei Matsumura, Kenji Yamaoka, Ryohei Ikura, Yoshinori Takashima

    ACS Applied Materials & Interfaces 2025/04/02 Research paper (scientific journal)

  5. Design of functional and stable adhesion systems using reversible and movable crosslinked materials

    Yunpeng Qian, Sho Kosaba, Ryohei Ikura, Kenji Yamaoka, Yoshinori Takashima

    Polymer Journal 2025/04 Research paper (scientific journal)

  6. Preparation of Citric Acid-Modified Cellulose Composites and Elucidation of Their Toughening Mechanism

    Yuta Joka, Kenji Yamaoka, Ryohei Ikura, Takeru Komyo, Chao Luo, Akihide Sugawara, Hiroshi Uyama, Yasutomo Uetsuji, Yoshinori Takashima

    ACS Applied Polymer Materials 2025/03/13 Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)
  7. Temperature-dependent behavior of poly(N-isopropylacrylamide) brushes via neutron reflectometry

    Kenichi Nagase, Kenji Yamaoka, Ruka Shimane, Naoto Kojima, Norifumi L. Yamada, Hideki Seto, Yoshihisa Fujii

    Surfaces and Interfaces Vol. 54 p. 105268-105268 2024/11 Research paper (scientific journal)

    Publisher: Elsevier BV
  8. Reinforcement and Controlling the Stability of Poly(ε-caprolactone)-Based Polymeric Materials via Reversible and Movable Cross-Links Employing Cyclic Polyphenylene Sulfide

    Yuyang Ding, Ryohei Ikura, Kenji Yamaoka, Koki Nishida, Akihide Sugawara, Hiroshi Uyama, Saori Nara, Yoshinori Takashima

    ACS Macro Letters 2024/10/15 Research paper (scientific journal)

  9. Exploring enzymatic degradation, reinforcement, recycling, and upcycling of poly(ester)s-poly(urethane) with movable crosslinks

    Jiaxiong Liu, Ryohei Ikura, Kenji Yamaoka, Akihide Sugawara, Yuya Takahashi, Bunsho Kure, Naomi Takenaka, Junsu Park, Hiroshi Uyama, Yoshinori Takashima

    Chem 2024/10 Research paper (scientific journal)

    Publisher: Elsevier BV
  10. Viscoelastic behaviors for optimizing self-healing of gels with host–guest inclusion complexes

    Kenji Yamaoka, Ryohei Ikura, Motofumi Osaki, Hidenori Shirakawa, Kazuya Takahashi, Hiroaki Takahashi, Yasumasa Ohashi, Yoshinori Takashima

    Polymer Journal 2024/09/11 Research paper (scientific journal)

    Publisher: Springer Science and Business Media LLC
  11. Sol–Gel Transition of a Thermo-Responsive Polymer at the Closest Solid Interface

    Kenji Yamaoka, Yoshihisa Fujii, Naoya Torikai

    Langmuir 2024/08/20 Research paper (scientific journal)

  12. Relation between the Water Content and Mechanical Properties of Hydrogels with Movable Cross-Links

    Koki Nishida, Ryohei Ikura, Kenji Yamaoka, Osamu Urakawa, Takashi Konishi, Tadashi Inoue, Go Matsuba, Masaru Tanaka, Yoshinori Takashima

    Macromolecules 2024/08/13 Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)
  13. Nonlinear properties of uni-directional cellulose nanofiber-reinforced poly (lactic acid) composite filaments: a multiscale computational study

    Kanji Yano, Chao Luo, Ryohei Ikura, Kenji Yamaoka, Yoshinori Takashima, Yasutomo Uetsuji

    Advanced Composite Materials p. 1-15 2024/07/17 Research paper (scientific journal)

    Publisher: Informa UK Limited
  14. Recyclable Tough Adhesive Sheets with Movable Cross-Links for Sustainable Use

    Sho Kosaba, Ryohei Ikura, Kenji Yamaoka, Takayuki Arai, Yoshinori Takashima

    ACS Applied Materials & Interfaces 2024/05/15 Research paper (scientific journal)

  15. Improvement in Cohesive Properties of Adhesion Systems Using Movable Cross-Linked Materials with Stress Relaxation Properties

    Yunpeng Qian, Ryohei Ikura, Yusaku Kawai, Junsu Park, Kenji Yamaoka, Yoshinori Takashima

    ACS Applied Materials & Interfaces 2024/01/24 Research paper (scientific journal)

  16. Mechanical properties and molecular adhesion exhibited by inorganic–organic composite elastomers

    Naoki Yamashita, Ryohei Ikura, Kenji Yamaoka, Nobu Kato, Masanao Kamei, Kentaro Ogura, Minoru Igarashi, Hideo Nakagawa, Yoshinori Takashima

    Polymer Chemistry 2024 Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)
  17. Material Design of Citric Acid-Modified Cellulose Composite Polymeric Materials with Both Tough and Sustainable Enhancement by Multiple Noncovalent Bonds

    Takuma Wada, Junsu Park, Kenji Yamaoka, Yuki Asaki, Akihide Sugawara, Ryohei Ikura, Yuya Takahashi, Naomi Takenaka, Yasutomo Uetsuji, Hiroshi Uyama, Yoshinori Takashima

    ACS Applied Polymer Materials 2023/12/08 Research paper (scientific journal)

  18. Supramolecular photoresponsive polyurethane with movable crosslinks based on photoisomerization of azobenzene

    Xin Zhou, Ryohei Ikura, Changming Jin, Kenji Yamaoka, Junsu Park, Yoshinori Takashima

    Aggregate 2023/11/08 Research paper (scientific journal)

  19. Enhancement of the mechanical properties of organic–inorganic hybrid elastomers by introducing movable and reversible crosslinks

    Naoki Yamashita, Kenji Yamaoka, Ryohei Ikura, Daichi Yoshida, Junsu Park, Nobu Kato, Masanao Kamei, Kentaro Ogura, Minoru Igarashi, Hideo Nakagawa, Yoshinori Takashima

    Soft Matter 2023 Research paper (scientific journal)

  20. Interfacial Selective Study on the Gelation Behavior of Aqueous Methylcellulose Solution via a Quartz Crystal Microbalance

    Kenji Yamaoka, Norifumi L. Yamada, Koichiro Hori, Yoshihisa Fujii, Naoya Torikai

    Langmuir Vol. 38 No. 15 p. 4494-4502 2022/04/19 Research paper (scientific journal)

    Publisher: American Chemical Society ({ACS})
  21. Evaluation of Local Gelation Behavior of Aqueous Methylcellulose Solution Using Quartz Crystal Microbalance

    Kenji Yamaoka, Yoshihisa Fujii, Naoya Torikai

    MATERIALS TRANSACTIONS Vol. 62 No. 5 p. 647-654 2021/05/01 Research paper (scientific journal)

    Publisher: Japan Institute of Metals
  22. Evaluation of Local Gelation Behavior of Aqueous Methylcellulose Solution Using Quartz Crystal Microbalance

    Kenji Yamaoka, Yoshihisa Fujii, Naoya Torikai

    Journal of the Japan Institute of Metals and Materials Vol. 85 No. 1 p. 23-29 2021/01/01

    Publisher: Japan Institute of Metals

Misc. 8

  1. Design of Self-healing and Tough Materials Using Supramolecular Network Structures

    山岡賢司, 山岡賢司, 山下尚輝, 以倉崚平, 以倉崚平, 高島義徳, 高島義徳, 高島義徳

    オレオサイエンス Vol. 24 No. 3 2024

  2. Development of Cyclodextrin-Based Self-Healing Polymers

    高島義徳, 高島義徳, 高島義徳, JIN Changming, 山岡賢司, 原田明

    月刊ファインケミカル Vol. 52 No. 9 2023

  3. Characterization of Gelation Behavior for Aqueous Methylcellulose Solution by Combining NR and QCM

    山岡賢司, 藤井義久, 鳥飼直也

    量子ビームサイエンスフェスタ(Web) Vol. 2022 2023

  4. Interfacial Evaluation for Gelation Behavior of Aqueous Methylcellulose Solution using Quartz Oscillator

    山岡賢司, 藤井義久, 鳥飼直也

    レオロジー討論会講演要旨集 Vol. 68th (CD-ROM) 2020

  5. Multi-scaling rheological characterization of aqueous methylcellulose solution.

    山岡賢司, 藤井義久, 鳥飼直也

    繊維学会予稿集(CD-ROM) Vol. 75 No. 1 2020

  6. 基板界面近傍におけるメチルセルロース水溶液の粘弾性

    山岡賢司, 藤井義久, 鳥飼直也, 内藤昌信

    レオロジー討論会講演要旨集 Vol. 67th 2019

  7. 水晶振動子マイクロバランスを用いたメチルセルロース水溶液のゾル-ゲル転移挙動解析

    山岡賢司, 藤井義久, 鳥飼直也

    高分子学会予稿集(CD-ROM) Vol. 67 No. 1 2018

  8. 水晶振動子マイクロバランス法によるメチルセルロース水溶液のゲル化挙動解析

    山岡賢司, 藤井義久, 鳥飼直也

    高分子学会予稿集(CD-ROM) Vol. 67 No. 2 2018

Institutional Repository 2

Content Published in the University of Osaka Institutional Repository (OUKA)
  1. Exploring enzymatic degradation, reinforcement, recycling, and upcycling of poly(ester)-poly(urethane) with movable crosslinks

    Liu Jiaxiong, Ikura Ryohei, Yamaoka Kenji, Sugawara Akihide, Takahashi Yuya, Kure Bunsho, Takenaka Naomi, Park Junsu, Uyama Hiroshi, Takashima Yoshinori

    Chem Vol. 11 No. 2 2025/02/13

  2. Design of functional and stable adhesion systems using reversible and movable crosslinked materials

    Qian Yunpeng, Kosaba Sho, Ikura Ryohei, Yamaoka Kenji, Takashima Yoshinori

    Polymer Journal 2025/01/27