増永 啓康 (Hiroyasu Masunaga)
プロフィール
構造物性1G・動的構造チーム
研究員
メール： masunaga＠spring8.or.jp
X線散乱法を用いて高分子材料のÅからμmまでの階層構造を評価する手法・装置の開発をするとともに、様々な材料の小角X線散乱法を用いた構造評価を行っています。BL03XUにて手法・装置開発を実施しながら、BL03XU, BL40XU, BL40B2, BL45XUにて研究活動を行っています。マイクロビームを用いた不均一階層構造評価、異常分散を利用した元素選択的構造変化の追跡、微弱散乱試料における高SN比散乱測定、マイクロビーム極小角X線散乱測定法の開発など、手法・装置開発を中心に研究業務を進めております。
併任先
- 制御・情報部門 先端応用制御グループ
外部機関所属先
- 理化学研究所 客員研究員
キーワード
- 高分子
- 小角X線散乱
- マイクロビーム
研究成果
研究論文
- Masunaga, H., Ogawa, H., Fujiwara, A., Takata, M., Takahara, A., & Takeda, T. (2014). MS87. O06. Acta Cryst, 70, C1325.
- Masunaga, H., Ogawa, H., Nakashima, T., Kawai, T., Hikima, T., Takata, M., & Sasaki, S. (2013). 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 Transactions, 42(45), 16216-16221
- Masunaga, H., Ogawa, H., Takano, T., Sasaki, S., Goto, S., Tanaka, T., ... & Sugihara, Y. (2011). Multipurpose soft-material SAXS/WAXS/GISAXS beamline at SPring-8. Polymer journal, 43(5), 471-477
- Masunaga, H., Sakurai, K., Akiba, I., Ito, K., & Takata, M. (2013). Accurate measurements of intrinsic scattering from window materials by use of a vacuum camera. Journal of Applied Crystallography, 46(2), 577-579.
- Masunaga, H., Nakano, A., Yamamoto, K., Uezu, K., Sakurai, K., & Akiba, I. (2011, January). Metalation-induced Micelle Formation of a Block Copolymer in Non-selective Solvent. In Journal of Physics: Conference Series (Vol. 272, No. 1, p. 012023). IOP Publishing.
- Masunaga, H., Sasaki, S., Takata, M., Hanesaka, M., & Tashiro, K. (2009, August). Correlated changes in meso-and nano-scale hierarchical structure of Vinylidene fluoride-trifluoroethylene random copolymers investigated by simultaneous measurements of DSC and SAXS/WAXD utilizing synchrotron radiation. In Journal of Physics: Conference Series (Vol. 184, No. 1, p. 012014). IOP Publishing.
- Masunaga, H., Sasaki, S., Tashiro, K., Hanesaka, M., Takata, M., Inoue, K., ... & Yagi, N. (2007). Development of synchrotron DSC/WAXD/SAXS simultaneous measurement system for polymeric materials at the BL40B2 in SPring-8 and its application to the study of crystal phase transitions of fluorine polymers.Polymer journal, 39(12), 1281-1289.
- Masunaga, H., Sasaki, K., & Akiba, I. (2007). Convenient method for removing and concentrating hydrophobic organic compounds from water with amphiphilic polymers. Journal of applied polymer science, 103(1), 641-643.
- Masunaga, H., Sasaki, K., & Akiba, I. (2004). Reversible Gelation and Phase Transition of Aqueous Solution of Hydrophobically Modified Poly (N‐Isopropylacrylamide). Journal of Macromolecular Science, Part B, 43(5), 1063-1073
口頭発表
- Application and Instrumentation of Small-Angle X-ray Scattering for the Analysis of Heterogeneous Structure in Polymer Materials, IUCr2014, 2014, Montoriol, Canada.
- Development of structural evaluation various method that utilize synchrotron small-angle X-ray scattering measurement, Annual Users’ Meeting & 20th Anniversary of Operation, 2013, Hshinchu, Taiwan.