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  1. Li, X.*, Nakagawa, S., Tsuji, Y., Watanabe, N., Shibayama, M. Polymer gel with a flexible and highly ordered three-dimensional network synthesized via bond percolation, Science Advances  5(12), eaax8647 (2019).

  2. 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. 52, 8430–8439 (2019).

  3. 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).

  4. 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).

  5. 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).

  6. 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).

  7. 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).

  8. 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).

  9. 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).

  10. 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).

  11. 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).

  12. 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).

  13. 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).

  14. 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).

  15. 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).

  16. 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).

  17. 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).

  18. 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).

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

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

  21. 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).

  22. 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).

  23. 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).

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

  25. 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).

  26. 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).

  27. 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).

  28. 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).

  29. 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).