| Project/Area Number |
14350488
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子合成
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| Research Institution | HIROSHIMA UNIVERSITY |
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Principal Investigator |
YASUDA Hajime Hiroshima University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (00028200)
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| Co-Investigator(Kenkyū-buntansha) |
SHIRAHAMA Hiroyuki Hiroshima University, Center for Technology Research and Development, Associate Professor, 地域共同研究センター, 助教授 (60127660)
NAKAYAMA Yuushou Hiroshima University, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (20273576)
TAMAI Hisashi Hiroshima University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (40106802)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥13,600,000 (Direct Cost: ¥13,600,000)
Fiscal Year 2003: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 2002: ¥8,400,000 (Direct Cost: ¥8,400,000)
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| Keywords | Organometallics / Transition metal / polymerization / Biodegradable polymers / Poly(lactide) / New material / Fuel cell / Capacitor / 新規材料 / キャパシター / メソポア / リビング重合 / 有機金属錯体 / 生分解性高分子 / ブロック共重合 / 吸着性 / 希土類錯体 / ポリ乳酸 |
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| Research Abstract |
1) Living Polymerizations by Transition Metal Complexes : Ethylene, norbornene or polymerizations and their copolymerizations were examined using novel Nb, Ru, Co, Ni, Mo, Fe, Ti and W complexes having terpyridine, pyridine-imido or tropolone ligand. As a result, Fe complexes exhibit high catalytic activity for polymerizations of 1,3-conjugated dienes, and Ti compounds for caprolactone. Ni and Co complexes gave high molecular weight vinyl-type polymers of norbornene, while Mo complexes show high catalytic activity for ROMP of norbornene.
2) Novel Biodegradable Polymers : We examined the copolymerizations of lactide with cyclic carbonates ar caprolactone for the purpose of obtaining biodegradable polymers with good mechanical properties in a low cost. As a result, 3 dimensional block copolymers composed of LA/CL/LA was found to be excellent biodegradable polymer material.
3) New Function of High Mesoporous Activated Carbon : Not only pitches but also phenol resins and poly(vinyliden chloride/MMA) produce the desired mesoporous carbon by the addition of rare earth metal and Mn compounds. The usefulness of these materials as fuel cells, super-capacity, and hydrogenation catalyst were examined.
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