Laboratory of Soft Matter Structure & Physics
- Research Theme
- Elucidation of correlation between the structure and the physical properties of soft matter / Development of high-performance soft materials / Structure and dynamics analysis using light, X-ray, and neutron scattering
- Research Keywords
Polymer solution, polymer gel, rubber, nanostructure, molecular dynamics, light scattering, X-ray scattering, neutron scattering, Raman spectroscopy, rheology, polymer synthesis, polymer physics
Overview of Research and Education
We are engaged in understanding the polymer structure and dynamics of soft materials, including polymer solutions, gels, elastomers, micelles, colloids, and cells. We employ a combination of scattering techniques (neutron, X-ray, and light), rheological measurements, and spectroscopy to reveal the underlying mechanism between nanostructures and physical properties. We also develop new high-performance soft materials using the revealed mechanism from the structure analysis.
- Charge (US):
School of Science, Biological Science course (Macromolecular Functions), Core Laboratories
- Charge (GS):
Graduate School of Life Science, Division of Soft Matter, Soft Matter Materials Science
Frontier Research Center for Advanced Material and Life Science 1F, Kita 21 Nishi 11, Sapporo
- x.li*sci.hokudai.ac.jp (Please replace ＊ with @ when sending e-mail.)
Selective Recent Publications
1. Y. Tsuji, S. Nakagawa, C. I. Gupit, M. Ohira, M. Shibayama, and X. Li, Selective Doping of Positive and Negative Spatial Defects into Polymer Gels by Tuning the Pregel Packing Conditions of Star Polymers, Macromolecules 53, 7537 (2020).
2. C. I. Gupit, X. Li, R. Maekawa, N. Hasegawa, H. Iwase, S. Takata, and M. Shibayama, Nanostructures and Viscosities of Nafion Dispersions in Water/Ethanol from Dilute to Concentrated Regimes, Macromolecules 53, 1464 (2020).
3. E. A. Susaki, C. Shimizu, A. Kuno, K. Tainaka, X. Li, K. Nishi, K. Morishima, H. Ono, K. L. Ode, Y. Saeki, K. Miyamichi, K. Isa, C. Yokoyama, H. Kitaura, M. Ikemura, T. Ushiku, Y. Shimizu, T. Saito, T. C. Saido, M. Fukayama, H. Onoe, K. Touhara, T. Isa, A. Kakita, M. Shibayama, and H. R. Ueda, Versatile Whole-Organ/Body Staining and Imaging Based on Electrolyte-Gel Properties of Biological Tissues, Nat Commun 11, 1982 (2020).
4. X. Li, T. Noritomi, T. Sakai, E. P. Gilbert, and M. Shibayama, Dynamics of Critical Clusters Synthesized by End-Coupling of Four-Armed Poly(Ethylene Glycol)s, Macromolecules 52, 5086 (2019).
5. X. Huang, S. Nakagawa, X. Li, M. Shibayama, and N. Yoshie, A Simple and Versatile Method for the Construction of Nearly Ideal Polymer Networks, Angewandte Chemie Int Ed 59, 9646 (2020).
6. X. Li, S. Nakagawa, Y. Tsuji, N. Watanabe, and M. Shibayama, Polymer Gel with a Flexible and Highly Ordered Three-Dimensional Network Synthesized via Bond Percolation, Science Advances 5, eaax8647 (2019).
7. X. Li, N. Watanabe, T. Sakai, and M. Shibayama, Probe Diffusion of Sol–Gel Transition in an Isorefractive Polymer Solution, Macromolecules 50, 2916 (2017).