Structural Characterization and Inhomogeneity Control of Polymer Network toward Realization of Ideal Polymer Network

2012 Fiscal Year Final Research Report

• Project/Area Number: 22245018
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Polymer chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: SHIBAYAMA Mitsuhiro 東京大学, 物性研究所, 教授 (00175390)
• Co-Investigator(Kenkyū-buntansha): SAKAI Takamasa 東京大学, 工学系研究科, 助教 (70456151)
• Project Period (FY): 2010 – 2012
• Keywords: 高分子物性 / ゲル / ゴム弾性 / 理想網目 / 不均一性 / ゲル化 / 中性子散乱

Research Abstract

We focused on precisely-controlled “ideal” polymer networks prepared by the “module building” method, and investigated the structure-property relationship on fundamental problems of rubber elasticity as well as polymer physics. With the aid of various kinds of experimental methods, such as small-angle neutron scattering (SANS), dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), tensile measurements, rheology, swelling/shrining measurements, differential scanning calorimetry (DSC), infrared spectroscopy (IR), and computer simulation, we carried out intensive studies to elucidate the structure-property relationship of not only Tetra-PEG gels but also natural rubbers, phenol resins, threadlike micelles, and other systems. We succeeded in formation of precisely-controlled polymer network science.

Research Products

• [Journal Article] High-performance ion gel with tetra-PEG network (2012)
  • Author(s): Fujii, K., Asai, H., Ueki, T., Sakai, T., Imaizumi, S., Chung, U., Watanabe, M., Shibayama, M.
  • Journal Title: SoftMatter Volume: 8 Pages: 1756-1759(
  • DOI: DOI:10.1039/c2sm07119c
  • Peer Reviewed
• [Journal Article] Effect of swelling and deswelling on the elasticity of polymer networks in the dilute to semi-dilute region (2012)
  • Author(s): Sakai, T., Kurakazu, M., Akagi, Y., Shibayama, M., Chung, U.
  • Journal Title: Soft Matter Volume: 8 Pages: 2730-2736
  • DOI: DOI:10.1039/c2sm07043j
  • Peer Reviewed
• [Journal Article] Atomistic molecular dynamics study of cross-linked phenolic resins (2012)
  • Author(s): Izumi, A., Nakao, T., Shibayama, M.
  • Journal Title: Soft Matter Volume: 8 Pages: 5283-5292
  • DOI: DOI:10.1039/c2sm25067e
  • Peer Reviewed
• [Journal Article] Anomalous volume phase transition in a polymer gel with alternativehydrophilic-amphiphilic sequence (2012)
  • Author(s): Kamata, H., Chung, U., Shibayama, M., Sakai, T.,
  • Journal Title: Soft Matter Volume: 8 Pages: 2876-2879
  • DOI: DOI:10.1039/c2sm25168j
  • Peer Reviewed
• [Journal Article] Structure-mechanical property relationship of tough hydrogels (2012)
  • Author(s): Shibayama, M.
  • Journal Title: Soft Matter Volume: 8 Pages: 8030-8038
  • DOI: DOI:10.1039/c2sm25325a
  • Peer Reviewed
• [Journal Article] Kinetic Study for AB-Type Coupling Reaction of Tetra-Arm Polymers (2012)
  • Author(s): Nishi, K., Fujii, K., Chijiishi, M., Katsumoto, Y., Chung, U., Sakai, T., Shibayama, M.
  • Journal Title: Macromolecules Volume: 45 Pages: 1031-1036
  • DOI: DOI:10.1021/ma202386k
  • Peer Reviewed
• [Journal Article] Mechanical properties of polymer network of Tetra-PEG gel (2012)
  • Author(s): Sugimura, A., Asai, M., Matsunaga, T., Akagi, Y., Noguchi, H., Shibayama, M.
  • Journal Title: Polym. J., online Volume: 45 Pages: 300-306
  • DOI: DOI:10.1038/pj.2012.149
  • Peer Reviewed
• [Journal Article] Stress Relaxation and Hysteresis of Nanocomposite Gel Investigated by SAXS and SANS Measurement (2012)
  • Author(s): Nishida, T., Obayashi, A., Haraguchi, K., Shibayama, M.
  • Journal Title: Polymer Volume: 53 Pages: 4533-4538
  • DOI: DOI:10.1016/j.polymer.2012.07.038
  • Peer Reviewed
• [Journal Article] Rubber Elasticity for Incomplete Polymer Networks (2012)
  • Author(s): Nishi, K., Chijiishi, M., Katsumoto, Y., Nakao, T., Fujii, K., Chung, U., Noguchi, H., Sakai, T., Shibayama, M., J.Chem.
  • Journal Title: Phys Volume: 137 Pages: 224903-1-7
  • DOI: DOI:10.1063/1.4769829
  • Peer Reviewed
• [Journal Article] Small-angle neutron scattering on polymer gels: phase behavior, inhomogeneities and deformation mechanisms (2011)
  • Author(s): Shibayama, M.
  • Journal Title: Polym. J. Volume: 43 Pages: 155-163
  • DOI: DOI:10.1038/pj.2010.110
  • Peer Reviewed
• [Journal Article] SANS Studies on Tetra-PEG Gel under Uniaxial Deformation (2011)
  • Author(s): Matsunaga, T., Asai, H., Akagi, Y., Sakai, T., Chung, U., Shibayama, M.
  • Journal Title: Macromolecules Volume: 44 Pages: 1203-1210
  • DOI: DOI:10.1021/ma102658e
  • Peer Reviewed
• [Journal Article] Precise Control and Prediction of Hydrogel Degradation Behavior (2011)
  • Author(s): Li, X., Tsutsui, Y., Matsunaga, T., Shibayama, M., Chung, U., Sakai, T.
  • Journal Title: Macromolecules Volume: 44 Pages: 3567-3571
  • DOI: DOI:10.1021/ma2004234
  • Peer Reviewed
• [Journal Article] Examination of the Theories of Rubber Elasticity Using an Ideal Polymer Network (2011)
  • Author(s): Akagi, Y., Katashima, T., Katsumoto, Y., Fujii, K., Matsunaga, T., Chung, U., Shibayama, M., Sakai, T.
  • Journal Title: Macromolecules Volume: 44 Pages: 5817-5821
  • DOI: DOI:10.1021/ma201088r
  • Peer Reviewed
• [Journal Article] Structure and physical properties of dried Tetra-PEG gel (2011)
  • Author(s): Nomoto, Y., Matsunaga, T., Sakai, T., Tosaka, M., Shibayama
  • Journal Title: M., Polymer Volume: 52 Pages: 4123-4128
  • DOI: DOI:10.1016/j.polymer.2011.06.053
  • Peer Reviewed
• [Journal Article] Dynamic light scattering and small-angle neutron scattering studies on phenolic (2011)
  • Author(s): Izumi, A., Takeuchi, T., Nakao, T., Shibayama, M.
  • Journal Title: Polymer Volume: 52 Pages: 4355-4361
  • DOI: DOI:10.1016/j.polymer.2011.06.059
  • Peer Reviewed
• [Journal Article] Evaluation of Topological Defects inTetra-PEG Gels (2010)
  • Author(s): Akagi, Y., Matsunaga, T., Shibayama, M., Chung, U., Sakai, T.
  • Journal Title: Macromolecules Volume: 430 Pages: 488-493
  • DOI: DOI:10.1021/ma9019009
  • Peer Reviewed
• [Journal Article] Nonuniformity in Cross-Linked Natural Rubber as Revealed by Contrast-Variation Small-Angle Neutron Scattering (2010)
  • Author(s): Suzuki, T., Osaka, N., Endo, H., Shibayama, M., Ikeda, Y., Asai, H., Higashitani, N., Kokubo, Y., Kohjiya, S.
  • Journal Title: Macromolecules Volume: 43 Pages: 488-493
  • DOI: DOI:10.1021/ma9019416
  • Peer Reviewed
• [Journal Article] Highly Elastic and Deformable Hydrogel Formed from Tetra-arm Polymers (2010)
  • Author(s): Sakai, T., Akagi, Y., Matsunaga, T., Kurakazu, M., Chung, U., Shibayama, M.
  • Journal Title: Macromol. Rapid Commun. Volume: 31 Pages: 1954-1959
  • DOI: DOI:10.1002/marc.201000286.
  • Peer Reviewed
• [Journal Article] Rheo-SANS Studies on Shear Thickening in Clay-Poly(ethylene oxide) Mixed Solutions (2010)
  • Author(s): Takeda, M., Matsunaga, T., Nishida, T., Endo, H., Takahashi, T., Shibayama, M.
  • Journal Title: Macromolecules. Volume: 43 Pages: 7793-7799
  • DOI: DOI:10.1021/ma101319j.
  • Peer Reviewed
• [Journal Article] Microscopic Structure Analysis ofClay-Poly(ethylene oxide) Mixed Solution in a Flow Field by Contrast-Variation Small-Angle Neutron Scattering (2010)
  • Author(s): Matsunaga, T., Endo, H., Takeda, M.,Shibayama, M.
  • Journal Title: Macromolecules Volume: 43 Pages: 5075-5082
  • DOI: DOI:10.1021/ma100476s10.1021/ma100176f
  • Peer Reviewed
• [Journal Article] Evaluation of Gelation Kinetics ofTetra-PEG Gel (2010)
  • Author(s): Kurakazu, M., Katashima, T., Chijiishi, M., Nishi, K., Akagi, Y., Matsunaga, T., Shibayama, M., Chung, U., Sakai, T.
  • Journal Title: Macromolecules Volume: 43, Pages: 5075-5082
  • DOI: DOI:10.1021/ma100176f
  • Peer Reviewed
• [Presentation] Structure and Gelation Dynamics ofTetra-PEG Ion Gels (2012)
  • Author(s): Shibayama, M., Tutzing
  • Organizer: Workshop on "Trends and Perspectives in Neutron Scattering for Soft Mater and Biophysics
  • Place of Presentation: Germany
  • Year and Date: 20121008-1011
• [Presentation] Structure and Properties ofConnectivity-Controlled Tetra-PEG Gels (2012)
  • Author(s): Shibayama, M.
  • Organizer: Polymeric and Self-assembling Hydrogels' From Fundamental Understanding to Applications
  • Place of Presentation: King's College, London, UK
  • Year and Date: 20120903-0907
• [Presentation] Structure and properties of tetra-PEG ion gels (2012)
  • Author(s): Shibayama, M., Jackson Hole, Wyoming
  • Organizer: Polymer Network Group Meeting2012
  • Place of Presentation: USA
  • Year and Date: 20120810-0818
• [Presentation] Preparation and Structural Characterization of High-Strength Ion Gels MACRO2012 (2012)
  • Author(s): Shibayama, M.
  • Organizer: Virginia Tech in Blacksburg
  • Place of Presentation: Virginia, USA,
  • Year and Date: 20120624-0629
• [Presentation] Structure and Properties of Tetra-PEG Ion Gels (2012)
  • Author(s): Shibayama, M.
  • Place of Presentation: Chengdu, China
  • Year and Date: 20120604-0608
• [Presentation] Exploration of Advanced Polymer Gels bySmall-angle Neutron Scattering (2011)
  • Author(s): Shibayama, M.
  • Organizer: 2011MRS-J Meeting
  • Place of Presentation: Yokohama
  • Year and Date: 20111219-1221
• [Presentation] Structure and Properties of High Performance Gels Made by Module Assembling Method (2011)
  • Author(s): Shibayama, M., Boston, Massachusetts
  • Organizer: 2011 MRS Fall Meeting
  • Place of Presentation: USA
  • Year and Date: 20111128-1202
• [Presentation] Rheo-SANS Studies on Structure Evolution in Polymer-particle Aqueous Solutions (2011)
  • Author(s): Shibayama, M.
  • Organizer: 1st AOCNS
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20111120-1124
• [Presentation] Small-Angle Neutron Scattering: a Powerful Tool for Nanostructure Characterization of Soft Materials (2011)
  • Author(s): Shibayama
  • Organizer: International Conference on Advanced Materials for Sustainable Development (ICAMN2011) Kathmandu
  • Place of Presentation: M., Nepal
  • Year and Date: 20111021-1023
• [Presentation] 中性子散乱による高分子ゲルの精密構造解 (2010)
  • Author(s): Shibayama, M.
  • Organizer: Precision Analyses of Polymer Gels by Neutron Scattering Award LecturAnnual Meeting of the Society of Polymer Science
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 20100526-0528
• [Book] Polymeric and Self Assembled Hydrogels:Fundamentals to Applications, Chapt. 2,Fabrication Structure, Mechanical Properties, and Application of Tetra-PEG Hydrogels Oren Scherman and Xian Jun Loh, Eds. (2012)
  • Author(s): Shibayama, M., Sakai, T.
  • Total Pages: 2-38
  • Publisher: RSC Publishing
• [Book] Inhomogeneous Structure and Dynamics of Condensed Soft Matter Edited by Imae (2011)
  • Author(s): T,. Kanaya, T., Furusaka, M., and Torikai, N.Shibayama, M.
  • Total Pages: 493-516
  • Publisher: Neutrons in Soft Matter, Wiley
• [Remarks]
  • URL: http://shibayama.issp.u-tokyo.ac.jp/
• [Patent(Industrial Property Rights)] イオン液体含有ゲルの製造方法 (2012)
  • Inventor(s): 鄭雄一・酒井崇匡・柴山充弘・藤井健太
  • Industrial Property Rights Holder: 国立大学法人 東京大学
  • Industrial Property Number: 技術分野 2012-078853
  • Filing Date: 2012-03-30
  • Overseas
• [Patent(Industrial Property Rights)] ULTRA-HIGH STRENGTH INJECTABLE HYDROGEL AND PROCESSFO (2011)
  • Inventor(s): 鄭雄一、鈴木茂樹、酒井崇匡、柴山 充弘、佐々木伸雄
  • Industrial Property Rights Holder: 国立大学法人東京大学、国立大学法 人横浜国立大学
  • Industrial Property Number: 技術分野 特願 2011-198851
  • Acquisition Date: 2011-09-12
  • Overseas