Copyright (C) Shibayama laboratory all right reserved

Li, Xiang

李 响

Assistant Professor of Neutron Science Laboratory

Institute for Solid State Physics (ISSP)
The University of Tokyo

ISSP, Room A528

5-1-5 Kashiwanoha
Kashiwa, Chiba, Japan 277-8581

Phone: 04-7136-3419


Research Interest

I am engaged in understanding polymer structure and dynamics in solutions, gels and elastomers. 

We employ a combination of scattering techniques (neutron, X-ary and light) and rheological measurements to reveal the underlying mechanism between nanostructures and macroscopic mechanical response.

Professional Experience

  • Assistant Professor, ISSP, The University of Tokyo, 2015-present


  • 2010 B.S. in Engineering, Department of Materials Engineering, The University of Tokyo

  • 2015 Ph.D. in Engineering, Department of Bioengineering, The University of Tokyo


  • Red2D: a small data reduction package to convert 2D elastic scattering patterns​​​ to 1D I-q profile, working on Igor Pro.

Awards and Honors

  • 2018 高分子研究奨励賞(高分子学会)

  • 2017 AONSA Young Research Fellow (visiting ACNS, Australia)

  • 2012-2015 日本学術振興会特別研究員(DC1)

  • 2014 Best Poster Awards, Polymer Network Groups Meeting and Gel Symposium 2014

  • 2014 優秀演題賞 高分子ゲル研究討論会

  • 2014 Best Poster Awards, 14th Asia-Pacific International Symposium on Microscale Separations and Analysis

  • 2013 Students Travel Awards, 29th International Symposium on MicroScale Bioseparations

  • 2012 Presentation Awards for Young Researchers, 9th International Gel Symposium

  • 2012 最優秀ポスター賞 第32回キャピラリー電気泳動シンポジウム

  • 2011 最優秀発表賞, 2011年帝人21世紀フォーラム

Grant fundings

  • 2019-2022 JSPS 若手研究「架橋高分子の空間不均一性と力学物性の相関の解明」(代表)

  • 2017-2018 JSPS 若手研究(B) 「精密で可逆的な物理架橋点を利用した真に均一な高分子ゲルの創成 」(代表)

  • 2015-2019 JSPS 基盤研究(A)「理想荷電性高分子ゲルの創成とその新たな応用展開」(分担)


See links below for the latest list.

Web of Science Researcher ID: M-8408-2017

ORCID: 0000-0001-6194-3676

*shows the publications in which correspondence addressed to myself.
  1. Hashimoto, K.; Hirasawa, M.; Kokubo, H.; Tamate, R.; Li, X.; Shibayama, M.; Watanabe, M., Transport and Mechanical Properties of ABA-type Triblock Copolymer Ion Gels Correlated with Their Microstructures. Macromolecules. (2019) accepted.

  2. Tamate, R.; Hashimoto, K.; Li, X.; Shibayama, M.; Watanabe, M. Effect of Ionic Liquid Structure on Viscoelastic Behavior of Hydrogen-Bonded Micellar Ion Gels. Polymer. 178, 121694 (2019).

  3. Li, X.*; Noritomi, T.; Sakai, T.; Gilbert, E.; Shibayama, M.: Dynamics of critical clusters synthesized by end-coupling of four-armed polyethylene glycols. Macromolecules. 52, 5086–5094 (2019).

  4. Fujiyabu, T., Li, X., Chung, U.-I., Sakai, T.: Diffusion Behavior of Water Molecules in Hydrogels with Controlled Network Structure. Macromolecules. 52, 1923–1929 (2019).

  5. Morishima, K., Nakamura, N., Matsui, K., Tanaka, Y., Masunaga, H., Mori, S., Iwashita, T., Li, X., Shibayama, M.: Formation of Clusters in Whiskies During the Maturation Process. J. Food Sci. 84, 59–64 (2019).

  6. Wang, C., Hashimoto, K., Tamate, R., Kokubo, H., Morishima, K., Li, X., Shibayama, M., Lu, F., Nakanishi, T., Watanabe, M.: Viscoelastic change of block copolymer ion gels in a photo-switchable azobenzene ionic liquid triggered by light. Chem. Commun. 55, 1710–1713 (2019).

  7. Shibayama, M., Li, X., Sakai, T.: Precision polymer network science with tetra-PEG gels—a decade history and future. Colloid and Polymer Science. 297, 1–12 (2019).

  8. Morishima, K., Li, X., Oshima, K., Mitsukami, Y., Shibayama, M.: Small-angle scattering study of tetra-poly(acrylic acid) gels. J Chem Phys. 149, 163301 (2018).

  9. Ohira, M., Li, X.*, Gupit, C.I., Kamata, H., Sakai, T., Shibayama, M.: Dynamics of thermoresponsive conetwork gels composed of poly(ethylene glycol) and poly(ethyl glycidyl ether-co-methyl glycidyl ether). Polymer. 155, 75–82 (2018).

  10. Kureha, T., Hayashi, K., Ohira, M., Li, X., Shibayama, M.: Dynamic Fluctuations of Thermoresponsive Poly(oligo-ethylene glycol methyl ether methacrylate)-Based Hydrogels Investigated by Dynamic Light Scattering. Macromolecules. 51, 8932–8939 (2018).

  11. Tamate, R., Hashimoto, K., Horii, T., Hirasawa, M., Li, X., Shibayama, M., Watanabe, M.: Self-Healing Micellar Ion Gels Based on Multiple Hydrogen Bonding. Adv. Mater. 100, 1802792 (2018).

  12. Tsuji, Y., Li, X.*, Shibayama, M.: Evaluation of Mesh Size in Model Polymer Networks Consisting of Tetra-Arm and Linear Poly(ethylene glycol)s. Gels. 4, 50 (2018).

  13. Fujiyabu, T., Toni, F., Li, X., Chung, U.-I., Sakai, T.: Three cooperative diffusion coefficients describing dynamics of polymer gels. Chem. Commun. 59, 5151 (2018).

  14. Nakagawa, S., Li, X., Shibayama, M., Kamata, H., Sakai, T., Gilbert, E.P.: Insight into the Microscopic Structure of Module-Assembled Thermoresponsive Conetwork Hydrogels. Macromolecules. 51, 6645–6652 (2018).

  15. Ito, A., Yasuda, T., Yoshioka, T., Yoshida, A., Li, X., Hashimoto, K., Nagai, K., Shibayama, M., Watanabe, M.: Sulfonated Polyimide/Ionic Liquid Composite Membranes for CO2 Separation: Transport Properties in Relation to Their Nanostructures. Macromolecules. 51, 7112–7120 (2018).

  16. Watanabe, N., Li, X.*, Shibayama, M.: Probe Diffusion during Sol–Gel Transition of a Radical Polymerization System Using Isorefractive Dynamic Light Scattering. Macromolecules. 50, 9726–9733 (2017).

  17. Fujiyabu, T., Li, X., Shibayama, M., Chung, U.-I., Sakai, T.: Permeation of Water through Hydrogels with Controlled Network Structure. Macromolecules. 50, 9411–9416 (2017).

  18. Li, X.*, Watanabe, N., Sakai, T., Shibayama, M.: Probe Diffusion of Sol–Gel Transition in an Isorefractive Polymer Solution. Macromolecules. 50, 2916–2922 (2017).

  19. Shibayama, M., Li, X., Sakai, T.: Gels: From Soft Matter to BioMatter. Industrial & Engineering Chemistry Research. 57, 1121–1128 (2017).

  20. Hayashi, K., Okamoto, F., Hoshi, S., Katashima, T., Zujur, D.C., Li, X., Shibayama, M., Gilbert, E.P., Chung, U.-I., Ohba, S., Oshika, T., Sakai, T.: Fast-forming hydrogel with ultralow polymeric content as an artificial vitreous body. Nature Biomedical Engineering. 1, 0044 (2017).

  21. Li, X.*, Hirosawa, K., Sakai, T., Gilbert, E.P., Shibayama, M.: SANS Study on Critical Polymer Clusters of Tetra-Functional Polymers. Macromolecules. 50, 3655–3661 (2017).

  22. Nakagawa, S., Li, X., Kamata, H., Sakai, T., Gilbert, E.P., Shibayama, M.: Microscopic Structure of the “Nonswellable” Thermoresponsive Amphiphilic Conetwork. Macromolecules. 50, 3388–3395 (2017).

  23. Kamata, H., Li, X., Chung, U.-I., Sakai, T.: Design of Hydrogels for Biomedical Applications. Adv Healthc Mater. 4, 2360–2374 (2015).

  24. Khairulina, K., Li, X., Nishi, K., Shibayama, M., Chung, U.-I., Sakai, T.: Electrophoretic mobility of semi-flexible double-stranded DNA in defect-controlled polymer networks: Mechanism investigation and role of structural parameters. J Chem Phys. 142, 234904 (2015).

  25. Li, X., Kondo, S., Chung, U.-I., Sakai, T.: Degradation Behavior of Polymer Gels Caused by Nonspecific Cleavages of Network Strands. Chem Mater. 26, 5352–5357 (2014).

  26. Li, X., Khairulina, K., Chung, U.-I., Sakai, T.: Electrophoretic Mobility of Double-Stranded DNA in Polymer Solutions and Gels with Tuned Structures. Macromolecules. 47, 3582–3586 (2014).

  27. Li, X., Khairulina, K., Chung, U.-I., Sakai, T.: Migration Behavior of Rodlike dsDNA under Electric Field in Homogeneous Polymer Networks. Macromolecules. 46, 8657–8663 (2013).

  28. Li, X., Tsutsui, Y., Matsunaga, T., Shibayama, M., Chung, U.-I., Sakai, T.: Precise Control and Prediction of Hydrogel Degradation Behavior. Macromolecules. 44, 3567–3571 (2011).

Books and chapters

  • 高分子ゲルの物理学: 構造・物性からその応用まで(酒井 崇匡 編)

    • ​6. ゲル内における物質拡散

  • Gels and Other Soft Amorphous Solids (Editors: F. Horkay, J. F. Douglas, E. D. Gado)

    • ​4. Probe Diffusion Dynamic Light Scattering of Polymer solutions and Gels

  • 刺激応答性高分子ハンドブック(宮田 隆志 編)

    • ​第3章 第4節 制御された網目構造を有する温度応答性ハイドロゲル

Invited talks

  • TBD, 2nd G"L"owing Polymer Symposium in KANTO, 高分子学会関東支部 (2019)

  • 散乱から見たゾル・ゲル転移, 高分子講演会(関東若手), 高分子学会関東若手会 (2018)

  • The boundary of sol and gel seen by light, 東京大学-清華大学合同シンポジウム Materials & Physics (2018)

  • プローブ粒子から見たゲル化過程, 高分子講演会(東海), 高分子学会東海支部 (2016)

  • 均一高分子網目構造内におけるDNAの電気泳動挙動, 機能物性融合科学研究会, 東京大学物性研究所 (2015)