| Project/Area Number |
26620199
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Kansai University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
UCHIYAMA Hiroaki 関西大学, 化学生命工学部, 准教授 (10551319)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 有機・無機ハイブリッド / ポリオキソメタレート / オキソオリゴマー / 配位多面体 / 金属錯体 / キレート剤 / 熱可塑性 / ガラス転移 / アルコキシド / 金属塩 / 非晶質 / 透光性材料 / 熱軟化性 / チタニア / β-ジケトン |
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| Outline of Final Research Achievements |
Organically modified polyoxometalates were prepared by hydrolyzing metal alkoxides in the presence of chelating agents like benzoylacetone (BzAc), followed by concentration and drying. The softening temperature was found to be affected by the molecular weight of the polymerized species, which are varied with the amounts of the chelating agents and of the water for hydrolysis. Structural analysis based on pair distribution function suggested that the BzAc-modified polyoxotitanates are composed of TiO6 octahedra that are liked by corner- and edge-sharing. The BzAc-modified polyoxotitanates showed glass transition in their low-temperature TMA and DSC curves, suggesting that such organically modified polyoxometalates could be a new class of glassy materials.
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