| Project/Area Number |
18K05214
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 35010:Polymer chemistry-related
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Oishi Masataka 東京工業大学, 物質理工学院, 助教 (20376940)
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| Co-Investigator(Kenkyū-buntansha) |
野村 信嘉 名古屋大学, 生命農学研究科, 准教授 (70291408)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 有機金属錯体 / 精密重合 / ビニルピリジン / 親電子性金属 / 立体規則性 / 立体規則性重合 / 共重合 / 超高分子量重合体 / 機能性高分子 |
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| Outline of Final Research Achievements |
Synthesis and structure characterization of electrophilic organometallic complexes supported by well-available substituted phenolate ligands were studied, and these complexes were evaluated in the polymerization of 2-vinylpyridine (2VP). As a result, organoyttrium complexes appeared to be one of the most active initiators with exceedingly high-isotactic control. Moreover, both molecular weight control in a high molecular weight region and the high stereoregularity were attained by co-use of excess organoaluminums. Polymerization of 2VP by an on organoyttrium initiator derived from a sterically demanding salicylaldimine enabled molecular weight control in a low molecular weight region with moderate to high isotacticities. Interestingly, the latter yttrium system displayed polymerization activity toward some acrylates and lactide monomers, and block copolymerization of 2VP was examined.
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| Academic Significance and Societal Importance of the Research Achievements |
ポリ（２－ビニルピリジン）は、ピリジル極性基の存在のためより強い分子間力や水素結合が働く。立体規則性の制御された(ブロック)重合体において興味深い機能が発現できると期待される。本研究では、イットリウムを中心に親電子性の金属錯体を設計し、高活性で立体規則性の制御された２－ビニルピリジンの重合、さらに他のモノマーに対する重合活性を見出した。立体規則性と同時に、分子量制御や他モノマーの重合を可能とする錯体はほとんど知られず、本研究の成果は学術的に有意である。
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