Faculty Information, Institute for Chemical Research, Kyoto University   [ English | Japanese ]

OGAWA, Hiroki

Division of Multidisciplinary Chemistry - Polymer Materials Science -
Assistant Professor

E-mail: ogawa@scl.kyoto-u.ac.jp
Tel: 0774-38-3143
Fax: 0774-38-3146

Academic career
Research field
    Current research
    Selected publications
    1. Ryohei Ishige, Noboru Ohta, Hiroki Ogawa, Masatoshi Tokita, and Atsushi Takahara, Fully Liquid-Crystalline ABA Triblock Copolymer of Fluorinated Side-Chain Liquid-Crystalline A Block and Main-Chain Liquid-Crystalline B Block: Higher Order Structure in Bulk and Thin Film States Macromolecules 49, 6061−6074 (2016)
    2. Ogawa H, Takenaka M, Miyazaki T, Fujiwara A, Lee B, Shimokita K, Nishibori E and Takata M, Direct Observation on Spin-Coating Process of PS‑b‑P2VP Thin Films Macromolecules 49, 3471-3477 (2016)
    3. Ogawa H, Nishikawa Y, Fujiwara A, Takenaka M,Wang Y-C, Kanaya T and Takata M, Visualizing patterned thin films by grazing-incidence small-angle X-ray scattering coupled with computed tomography J. Appl. Cryst. 48, 1645–1650 (2015)
    4. Osaka M, Benten H, Ohkita H, Ito S, Ogawa H,and Kanaya T, Nanostructures for Efficient Hole Transport in Poly(3-hexylthiophene) Film: A Study by Conductive Atomic Force Microscopy J. Phys. Chem. C, 119(43), 24307–24314 (2015)
    5. Kanaya T, Ogawa H, Kishimoto M, Inoue R, Suter A, Prokscha T, Distribution of glass transition temperatures T-g in polystyrene thin films as revealed by low-energy muon spin relaxation: A comparison with neutron reflectivity results Phys. Rev. E 92, 022604-1-022604-7 (2015)
    6. Miyazaki T, Shimokita K, Ogawa H, Yamamoto K, System for in situ observation of three-dimensional structural changes in polymer films during uniaxial deformation J. Appl. Cryst. 48, 1016–1022 (2015)
    7. Shinohara T, Higaki Y, Nojima S, Masunaga H, Ogawa H, Okamoto Y, Aoki T, Takahara A, Molecular aggregation states and wetting behavior of a poly{2-(perfluorooctyl)ethyl acrylate} brush-immobilized nano-imprinted surface Polymer 69, 10-16 (2015)
    8. Matsuura T, Murakami M, Inoue R, Nishida K, Ogawa H, Ohta N, Kanaya T,, Microbeam Wide-Angle X-ray Scattering Study on Precursor of Shish Kebab. Effects of Shear Rate and Annealing on Inner Structure, Macromolecules 48, 3337−3343 (2015)
    9. Ishige R, Higuchi T, Jiang X, Mita K, Ogawa H, Yokoyama H, Takahara A, Jinnai H,, Structural Analysis of Microphase Separated Interface in an ABC-Type Triblock Terpolymer by Combining Methods of Synchrotron-Radiation Grazing Incidence Small-Angle X-ray Scattering and Electron Microtomography, Macromolecules 48, 2697−2705 (2015)
    10. T. Yamamoto, H. Okuda, K. Takeshita, N. Usami, Y. Kitajima, H. Ogawa,, Grazing-incidence small-angle X-ray scattering from Ge nanodots self-organized on Si(001) examined with soft X-rays J. Sync. Rad. 21, 161-164 (2014).
    11. H. Ogawa, T. Miyazaki, K. Shimokita, A. Fujiwara, M. Takenaka, T. Yamada, Y. Sugihara, M. Takata, High-precision spin coater for a synchrotron radiation in situ GISAXS system: for the investigation of formation mechanisms of self-assembled structures in polymer thin films J. Appl. Cryst. 46, 1610-1615 (2013).
    12. T. Xia, H. Ogawa, R. Inoue, K. Nishida, N. L. Yamada, G. Li, T. Kanaya, Dewetting process of deutrated polystyrene and poly (vinyl methyl ether) blend thin films via phase separation Macromolecules 46, 4540-4547 (2013).
    13. T. Kanaya, IA. Polec, T. Fujiwara, R. Inoue, K. Nishida, T. Matsuura, H. Ogawa, N. Ohta, Precursor of shish-kebab above the melting temperature by micro-beam X-ray scattering Macromolecules 46, 3031-3036 (2013).
    14. T. Shinohara, T. Shirahase, D. Murakami, T. Hoshino, M. Kikuchi, J. Koike, M. Horigome, H. Masunaga, H. Ogawa, A. Takhara, Precise and nondestructive characterization of a 'buried' nanostructure in a polymer thin film using synchrotron radiation ultra-small angle X-ray scattering Polym. J. 45, 307-312 (2013).
    15. H. Ogawa, H. Masunaga, S. Sasaki, S. Goto, T. Tanaka, T. Seike, S. Takahashi, K. Takeshita, N. Nariyama, H. Ohashi, T. Ohata, Y. Furukawa, T. Matsushita, Y. Ishizawa, N. Yagi, M. Takata, H. Kitamura, A. Takahara, K. Sakurai, K. Tashiro, T. Kanaya, Y. Amamiya, K. Horie, M. Takenaka, H. Jinnai, H. Okuda, I. Akiba, I. Takahashi, K. Yamamoto, M. Hikosaka, S. Sakurai, Y. Shinohara, Y. Sugihara and A. Okada, Experimental station for multiscale surface structural analyses of soft-material films at SPring-8 via a GISWAX/GIXD/XR-integrated system Polym. J. 45, 109-116 (2013).
    16. H. Masunaga, H. Ogawa, T. Nakashima, T. Kawai, T. Hikima, M. Takata, S. Sasaki, Trilayer-cubic core-shell structure of PbS/EuS nanocrystals revealed by the combination of the synchrotron small-angle X-ray scattering method and energy-dispersive X-ray spectroscopy Dalton Trans. 42, 16216-16221 (2013).
    17. T. Yano, Y. Higaki, D. Tao, D. Murakami, M. Kobayashi, N. Ohta, J. Koike, M. Horigome, H. Masunaga, H. Ogawa, Y. Ikemoto, T. Moriwaki, A. Takahara, Orientation of poly(vinyl alcohol) nanofiber and crystallites in non-woven electrospun nanofiber mats under uniaxial stretching Polymer 53, 4702-4708 (2012).
    18. H. Ajiro, C. Hongo, M. Maegawa, D. Kamei, S. Sasaki, H. Ogawa, H. Masunaga, Y. Takemoto, K. Horie, M. Akashi, Structural Nanospace Feature and Substrate Contribution to Maintaining Stable Porosity of Polymer Chain in Layer-by-Layer Assembled Isotactic Poly(methyl methacrylate) Films Macromolecules 45, 7660−7663 (2012).
    19. H. Yamaguchi, M. Kikuchi, M. Kobayashi, H. Ogawa, H. Masunaga, O. Sakata, A. Takahara, Influence of molecular weight dispersity of poly {2-(perfluoroctyl)ethyl acrylate} brushes on their molecular aggregation states and wetting behavior Macromolecules 45, 1509−1516 (2012).
    20. R. Motokawa, S. Suzuki, H. Ogawa, MR. Antonio, T. Yaita, Microscopic Structures of Tri-n-butyl Phosphate/n-Octane Mixtures by X-ray and Neutron Scattering in a Wide q Range J. Phys. Chem. B 116, 1319-1327 (2012).
    21. H. Okuda, K. Takeshita, S. Ochiai, Y. Kitajima, S. Sakurai and H. Ogawa, Contrast matching of an Si substrate with polymer films by anomalous dispersion at the Si K absorption edge J. Appl. Cryst. 45, 119-121 (2013).
    22. M. Kikuchi, Y. Terayama, T. Ishikawa, T. Hoshino, M. Kobayashi, H. Ogawa, H. Masunaga, J. Koike, M. Horigome, K. Ishihara and A. Takahara, Chain dimension of polyampholytes in solution and immobilized brush states Polymer 44, 121-130 (2012).
    23. H. Masunaga, H. Ogawa, T. Takano, S. Sasaki, S. Goto, T. Tanaka, T. Seike, S. Takahashi, K. Takeshita, N. Nariyama, H. Ohashi, T. Ohata, Y. Furukawa, T. Matsushita, Y. Ishizawa, N. Yagi, M. Takata, H. Kitamura, K. Sakurai, K. Tashiro, A. Takahara, Y. Amamiya, K. Horie, M. Takenaka, T. Kanaya, H. Jinnai, H. Okuda, I. Akiba, I. Takahashi, K. Yamamoto, M. Hikosaka, S. Sakurai, Y. Shinohara, A. Okada and Y. Sugihara, Multipurpose soft-material SAXS/WAXS/GISAXS beamline at SPring-8 Polym. J. 43, 471-477 (2011).
    24. Y. Amamoto, M. Kikuchi, H. Masunaga, H. Ogawa, S. Sasaki, H. Otsuka and A. Takahara, Mesh-size control and functionalization of reorganizable chemical gels by monomer insertion into their cross-linking points Polymer Chemistry 2, 957-962 (2011).
    25. T. Nishimura, H. Masunaga, H. Ogawa, I. Akiba and K. Sakurai, Cation-specific Transition from Vesicle to Lamella for an Aromatic Diamine Lipid in Aqueous Solutions Chem. Lett. 39, 686-687 (2010).
    26. I. Akiba, N. Terada, S. Hashida, K. Sakurai, T. Sato, K.Shiraishi, M. Yokoyama, H. Masunaga, H. Ogawa, K. Ito and N. Yagi, Encapsulation of a Hydrophobic Drug into a Polymer-Micelle Core Explored with Synchrotron SAXS Langmuir 26, 7544-7551 (2010).
    27. Y. Haketa, S. Sasaki, N. Ohta, H. Masunaga, H. Ogawa, N. Mizuno, F. Araoka, H. Takezoe, H. Maeda, Oriented Salts: Dimension-Controlled Charge-by-Charge Assemblies from Planar Receptor-Anion Complexes Angew. Chem., Int. Ed. 49, 10079-10083 (2010).
    28. M. Sakou, A. Takechi, M. Hanada, Y. Shinohara, Y. Amemiya, H. Masunaga, H. Ogawa, N. Yagi, K. Sakurai and I. Akiba, Anomalous Small-angle X-ray Scattering Study on Aggregation of a Block Copolymer in a Selective Solvent J. Phys.: Conf. Ser. 272, [012022-1]-[012022-4] (2010).
    29. M. Kikuchi, Y. Terayama, T. Hoshino, M. Kobayashi, H. Ogawa, H. Masunaga, A. Takahara, Static and Dynamic Scattering from Polysulfobetaine Immobilized on Silica Nanoparticle in Ionic Liquid J. Phys.: Conf. Ser. 272, [012016-1]-[012016-4] (2010).
    30. M. Sakuragi, K. Koiwai, K. Nakamura, H. Masunaga, H. Ogawa and K. Sakurai, Transformation from Multilamellar to Unilamellar Vesicles by Addition of a Cationic Lipid to PEGylated Liposomes Explored with Synchrotron Small Angle X-ray Scattering J. Phys.: Conf. Ser. 272, [012011-1]- [012011-9] (2010).
    31. H. Ogawa, T. Kanaya, K. Nishida, G. Matsuba, JP. Majewski and E. Watkins, Time-resolved specular and off-specular neutron reflectivity measurements on deuterated polystyrene and poly(vinyl methyl ether) blend thin films during dewetting process J. Chem. Phys. 131, [104907-1]-[104907-7] (2009).
    32. K. Naruse, K. Eguchi, I. Akiba, K. Sakurai, H. Masunaga, H. Ogawa and JS. Fossey, Flexibility and Cross-Sectional Structure of an Anionic Dual-Surfactant Wormlike Micelle Explored with Small-Angle X-ray Scattering Coupled with Contrast Variation Technique J. Phys. Chem. B 113, 10222-10229 (2009).
    33. H. Ogawa, T. Kanaya, R. Inoue, K. Nishida, G. Matsuba and M. Hino, Composition fluctuations before dewetting in polystyrene/poly(vinyl methyl ether) blend thin films Polymer 49, 2553-2559 (2008).
    34. H. Ogawa, T. Kanaya, K. Nishida and G. Matsuba, Phase Separation and Dewetting in Polystyrene/Poly(vinyl methyl ether) Blend Thin Films in a Wide Thickness Range Polymer 49, 254-262 (2008).
    35. K. Nishida, H. Ogawa, G. Matsuba, T. Konishi and T. Kanaya, High Resolution Small-Angle Light Scattering Instrument for Soft Material Study J. Appl. Cryst. 41, 723-728 (2008).
    36. H. Ogawa, T. Kanaya, K. Nishida and G. Matsuba, Phase separation and dewetting in polymer blend thin films Eur. Phys. J. Special Topics 141, 189-192 (2007).

    Update: Jun 28,2018