Fabrication of novel anisotropic materials from cellulose and their structural analyses and functional developments

• Project/Area Number: 23780184
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Kyoto University
• Principal Investigator: KUSUMI Ryosuke 京都大学, 大学院・農学研究科, 助教 (70546530)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: セルロース / 配向制御 / 固体NMR / 磁場 / 擬単結晶 / 化学シフトテンソル / 環境材料 / バイオマス / 高分子構造・物性 / NMR

Research Abstract

This research aimed at a fabrication of novel anisotropic materials from cellulose and an establishment of a method to analyze their crystal structures by X-ray/neutron diffraction and solid-state NMR spectroscopy. The three-dimensional alignment of microcrystals was achieved for model organic compounds of low-molecular weight by using a frequency-modulated rotating magnetic field. It was demonstrated that the crystal structures can be analyzed through the evaluation of 13C and 31P chemical shift tensors even from microcrystalline state. The orientation of cellulose was performed by application of a magnetic field for cellulose nanocrystals which were obtained through mechanical homogenization followed by acid hydrolysis of original cellulose materials.

Research Products

• [Journal Article] Chemical shift tensor determination using magnetically oriented microcrystal array (MOMA): 13C solid-state CP NMR without MAS (2012)
  • Author(s): R. Kusumi, F. Kimura, G. Song, T. Kimura
  • Journal Title: Journal of Magnetic Resonance Volume: 223 Pages: 68-72
  • DOI: 10.1016/j.jmr.2012.08.006
  • Peer Reviewed
• [Presentation] フェニルホスホン酸微結晶の三次元磁場配向化と固体NMR法による31P化学シフトテンソル解析 (2013)
  • Author(s): 久住亮介, 木村史子, 木村恒久
  • Organizer: 第60回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] 非MAS下での固体NMRによるセルロース繊維の構造解析 (2013)
  • Author(s): 久住亮介, G. Song, 木村史子, 木村恒久
  • Organizer: セルロース学会第20回年次大会
  • Place of Presentation: 京都大学
• [Presentation] /-トレオニン擬単結晶の化学シフトテンソルの決定 (2012)
  • Author(s): 木全美香子, 久住亮介, 木村史子, 木村恒久
  • Organizer: 第7回日本磁気科学会年会
  • Place of Presentation: 京都大学
• [Presentation] Fabrication of diffusion type polarizer using cellulosic materials (2012)
  • Author(s): S. Tokunaga, R. Kusumi, F. Kimura, and T. .LPXUD
  • Organizer: ICC2012
  • Place of Presentation: CHATERAISE Gateaux Kingdom SAPPORO Hotel & SPA Resort.
• [Presentation] 31P 固体 CP NMR 法によるフェニルホスホン酸擬単結晶の化学シフトテンソル解析 (2012)
  • Author(s): 久住亮介, 木村史子, 木村恒久
  • Organizer: 第7回日本磁気科学会年会
  • Place of Presentation: 京都大学
• [Presentation] L-トレオニン擬単結晶の化学シフトテンソルの決定 (2012)
  • Author(s): 木全美香子, 久住亮介, 木村史子, 木村恒久
  • Organizer: 第7回日本磁気科学会年会
  • Place of Presentation: 京都大学
• [Presentation] 31P 固体CP NMR 法によるフェニルホスホン酸擬単結晶の化学シフトテンソル解析 (2011)
  • Author(s): 久住亮介, 木村史子, 木村恒久
  • Organizer: 第7回日本磁気科学会年会
  • Place of Presentation: 京都大学
• [Presentation] 13C固体NMR法によるL-アラニン擬単結晶の構造解析 (2011)
  • Author(s): 久住亮介, 木村史子, 木村恒久
  • Organizer: 11-2 NMR研究会
  • Place of Presentation: 東京工業大学
• [Presentation] Magnetically oriented Microcrystal Array: Single Crystal Analysis by 13C Solid-State NMR Spectroscopy (2011)
  • Author(s): R. Kusumi, F. Kimura, and T. Kimura
  • Organizer: KIPS-ESPCI2011
  • Place of Presentation: Kyoto University
• [Presentation] L-アラニン擬単結晶の13C化学シフトテンソル解析 (2011)
  • Author(s): 久住亮介, 木村史子, 木村恒久
  • Organizer: 第6回日本磁気科学会年会
  • Place of Presentation: 東京大学
• [Presentation] Magnetically Oriented Microcrystal Array: Single Crystal Analysis by 13C Solid-State NMR Spectroscopy (2011)
  • Author(s): R. Kusumi, F. Kimura, and T. Kimura
  • Organizer: KIPS-ESPCI 2011
  • Place of Presentation: 京都大学
• [Remarks]
  • URL: http://www.fiber.kais.kyoto-u.ac.jp/index.html
• [Remarks] 生物繊維学分野 研究業績
  • URL: http://www.fiber.kais.kyoto-u.ac.jp/html/results.html