Creation of cellulosic materials mimicking secondary wall structure in tree cell wall

2008 Fiscal Year Final Research Report

• Project/Area Number: 18380100
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 林産科学・木質工学
• Research Institution: Hokkaido University
• Principal Investigator: URAKI Yasumitsu Hokkaido University, 大学院・農学研究院, 教授 (90193961)
• Co-Investigator(Kenkyū-buntansha): HIRAI Takuro 北海道大学, 大学院・農学研究院, 教授 (20173205) ; TAMAI Yutaka 北海道大学, 大学院・農学研究院, 准教授 (50281796) ; KISHIMOTO Takao 富山県立大学, 工学部, 准教授 (60312394)
• Co-Investigator(Renkei-kenkyūsha): SUGIYAMA Junji 京都大学, 生存圏研究所, 教授 (40183842)
• Project Period (FY): 2006 – 2008
• Keywords: 接着・木質材料 / 人工細胞壁 / セルロース / 人工リグニン / リグニン

Research Abstract

樹木細胞壁の二次壁の特徴は、他の壁組織に比べ多量に存在するリグニンとその化学構造である。本研究では、二次壁模倣材料の創出を目的に、二次壁リグニン模倣高分子を創製して、その物性を明らかにした。さらに、ハニカムパターン化セルロースにリグニンを吸着させて二次壁模倣セルロース材料を創製して、その物性解析からリグニンが高湿度における細胞壁の強度低下を抑制することを見出すと共に、木材成分のみで高強度材料を創出できることを明らかにした。

Research Products

• [Journal Article] Synthesis of β-O-4-type artificial lignin polymers and their analysis by NMR spectroscopy (2008)
  • Author(s): T. Kishimoto, Y. Uraki and M. Ubukata
  • Journal Title: Organic & Biomolecular Chemistry 6(16) Pages: 2982-2987
  • Peer Reviewed
• [Journal Article] Synthesis of Bromoacetophenone Derivatives as Starting Monomers for β-O-4 Type Artificial Lignin Polymers (2008)
  • Author(s): T. Kishimoto, Y. Uraki and M. Ubukata
  • Journal Title: Journal of Wood Chemistry and Technology 28(2) Pages: 97-105
  • Peer Reviewed
• [Journal Article] Polymerization of coniferyl alcohol by chain reaction. Another reaction for lignin formation (2007)
  • Author(s): Y. Uraki, K. Suzuki and M. Ubukata
  • Journal Title: Cellulose Chemistry and Technology 41(9-10) Pages: 505-509
  • Peer Reviewed
• [Journal Article] Honeycomb-like architecture produced by living bacteria, Gluconacetobacter xylinus (2007)
  • Author(s): Y. Uraki, J. Nemoto, H. Otsuka, Y. Tamai, J. Sugiyama, T. Kishimoto, (他4名)
  • Journal Title: Carbohydrate Polymers 69(1) Pages: 1-6
  • Peer Reviewed
• [Journal Article] Interaction of hemicelluloses with monolignols (2007)
  • Author(s): Y. Uraki, A. Nakamura, T. Kishimoto and M. Ubukata
  • Journal Title: Journal of Wood Chemistry and Technology 27(1) Pages: 9-21
  • Peer Reviewed
• [Journal Article] Chemical synthesis of b-O-4 type artificial lignin (2006)
  • Author(s): T. Kishimoto, Y. Uraki and M. Ubukata
  • Journal Title: Organic and Biomolecular Chemistry 4(7) Pages: 1343-1347
  • Peer Reviewed
• [Journal Article] A novel preparation of microcast for wood micromorphology using polydimethylsiloxane without digesting cell wall (2006)
  • Author(s): Y. Uraki, J. Nemoto and Y. Sano
  • Journal Title: Journal of Wood Science 52(2) Pages: 163-166
  • Peer Reviewed
• [Journal Article] Amphiphilicity of lignincarbohydrate complex (2006)
  • Author(s): Y. Uraki, Y. Usukura, T. Kishimoto and M. Ubukata
  • Journal Title: Holzforschung 60(6) Pages: 659-664
  • Peer Reviewed
• [Presentation] Mechanical properties of honeycomb-patterned cellulosic films (2007)
  • Author(s): C. Matasumoto, Y. Uraki, T. Hirai, (他4名)
  • Organizer: 2^<nd> International Cellulose Conference
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2007-10-22
• [Presentation] Synthesis of β-O-4 type artificial lignin polymers and their properties (2007)
  • Author(s): T. Kishimoto, Y. Uraki and M. Ubukata
  • Organizer: 14^<th> International Symposium of Wood, Fiber, Pulping Chemistry
  • Place of Presentation: Durban, South Africa
  • Year and Date: 2007-06-26
• [Presentation] Fabrication of honeycomb-patterned regenerated and bacterial celluloses (2007)
  • Author(s): C. Matsumoto, Y. Uraki, Y. Tamai, M. Ubukata, T. Hirai and M. Enoki
  • Organizer: 14^<th> International Symposium of Wood, Fiber, Pulping Chemistry
  • Place of Presentation: Durban, South Africa
  • Year and Date: 2007-06-26
• [Presentation] Fabrication of honeycombpatterned polysaccharides (2007)
  • Author(s): Y. Uraki, C. Matsumoto, T. Kishimoto, M. Ubukata, H. Yabu, M. Tanaka and M. Shimomura
  • Organizer: 233^<rd> ACS National Meeting
  • Place of Presentation: Chicago, USA
  • Year and Date: 2007-05-29
• [Presentation] Patterned cellulose films (2006)
  • Author(s): Y. Uraki, C. Matsumoto, Y. Tamai, T. Kishimoto, (他4名)
  • Organizer: 3^<rd> International Symposium on Emerging Technologies of Pulping and papermaking
  • Place of Presentation: Guanzhou, China
  • Year and Date: 2006-10-22
• [Patent(Industrial Property Rights)] β-O-4-type artificial lignin polymer and its preparation (2006)
  • Inventor(s): T. Kishimoto, Y. Uraki, M. Ubukata
  • Industrial Property Number: 国際公開番号WO 2006/092883 A1
  • Filing Date: 2006-09-08
  • Overseas