Breakthrough to development of new reaction field for highly effective analytical chemolysis

• Project/Area Number: 16K14019
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Analytical chemistry
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Ohtani Hajime 名古屋工業大学, 工学(系)研究科(研究院), 教授 (50176921)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 反応熱分解分析 / テトラリン / エポキシ樹脂 / 水素供与 / マトリックス支援レーザー脱離イオン化質量分析 / 酸化物半導体触媒 / 二段式熱分解装置 / バイオマス / 構造解析 / 難分解性高分子 / タンデムリアクター / 酸化チタン / 難分解性樹脂

Outline of Final Research Achievements

To develop a unique thermally assisted chemolysis technique useful for structural analyses of a vide valiety of cross-linking polymers, the conversion reactions of thermocured epoxy resins in tetralinwere investigated in detail. The observed products directly reflected the cross-linking structure of the cured resins, whereas they are hardly observed in the pyrogram obtained by ordinary Py-GC measurements at the comparable temperature condition. This observation suggests the potential of chemolysis with tetralin useful for the analysis of the cross-linking structure of cured resin samples. Then the catalytic effect of titanium dioxide on pyrolysis of woody biomass was investigated mainly using tandem micro reactor-GC/MS. For the catalytic pyrolysis of cellulose, various aromatic hydrocarbons were observed as main products. This fact demonstrates that titanium oxide acts as a thermal catalyst to convert the oxygenated products into hydrocarbons through its thermal excitation.

Research Products

• [Journal Article] On-line Analysis of Catalytic Reaction Products Using a High-Pressure Tandem Micro-reactor GC/MS (2017)
  • Author(s): Atsushi WATANABE, Young-Min KIM, Akihiko HOSAKA, Chuichi WATANABE, Norio TERAMAE, Hajime OHTANI, Seungdo KIM, Young-Kwon PARK, Kaige WANG, Robert R. FREEMAN
  • Journal Title: Analytical Sciences Volume: 33 Issue: 9 Pages: 1085-1089
  • DOI: 10.2116/analsci.33.1085
  • NAID: 130006071192
  • ISSN: 0910-6340, 1348-2246
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Catalytic pyrolysis of cellulose over titanium dioxide studied by tandem micro reactor-GC/MS (2018)
  • Author(s): H. Ida, H. Ohtani
  • Organizer: 2nd FRIMS International Symposium on Frontier Materials
  • Int'l Joint Research
• [Presentation] MALDI-MS を用いたエポキシ樹脂硬化物のテトラリン分解メカニズムの解明 (2017)
  • Author(s): ○酒井 駿，大谷 肇
  • Organizer: マテリアルライフ学会第21回春季研究発表会
  • Place of Presentation: 関東学院大学関内メディアセンター
  • Year and Date: 2017-02-24
• [Presentation] 樹脂硬化物のテトラリン分解メカニズムの解明と架橋ネットワーク構造解析への適用可能性 (2017)
  • Author(s): 大谷 肇, 加納稜大, 酒井 駿
  • Organizer: 第67回ネットワークポリマー講演討論会
• [Presentation] エポキシ樹脂硬化物の化学構造解析のためのテトラリンによる反応熱分解分析法の基礎検討 (2017)
  • Author(s): 酒井 駿, 大谷 肇
  • Organizer: 第22回高分子分析討論会
• [Presentation] タンデム型パイロライザー-GC/MSを用いたセルロースの熱分解に対する酸化チタン触媒効果の解析 (2017)
  • Author(s): 井田寛人, 大谷 肇
  • Organizer: 日本分析化学会第66年会
• [Presentation] エポキシ樹脂硬化物の化学構造解析のためのテトラリンによる反応熱分解分析法の基礎検討 (2017)
  • Author(s): 酒井 駿, 大谷 肇
  • Organizer: 日本分析化学会第66年会
• [Presentation] Thermally assisted chemolysis using hydrogen donor reagent for structural analysis of intractable cross-linking polymers (2017)
  • Author(s): H. Ohtani, R. Kano, S. Sakai
  • Organizer: 17th Symposium on Analytic and Applied Pyrolysis of China
  • Int'l Joint Research / Invited
• [Presentation] Detailed thermal decomposition mechanisms of thermosetting resins in tetralin studied by MALDI-MS and pyrolysis-GC-MS (2016)
  • Author(s): ○S. Sakai, R. Kano, H. Ohtani
  • Organizer: 9th International Conference on Modification, Degradation and Stabilization of Polymers (MoDeSt 2016)
  • Place of Presentation: ポーランド・クラクフ・クブスホテル
  • Year and Date: 2016-09-04
  • Int'l Joint Research