2021 Fiscal Year Final Research Report
Development of Innovative Chemical Modification Method of Amine-cured Epoxy Resin Using B-N Bond
| Project/Area Number |
19K22215
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 35:Polymers, organic materials, and related fields
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2019-06-28 – 2022-03-31
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| Keywords | エポキシ樹脂 / 高分子反応 / 化学修飾 / フェニルボロン酸 / ポリベンゾオキサジン |
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| Outline of Final Research Achievements |
The dioxazaborocane skeleton generated by the condensation reaction of a diethanolamine skeleton in amine-cured epoxy resin and phenylboronic acid is stabilized by a B-N coordination bond in addition to the covalent bond formation by the condensation reaction of the boric acid and hydroxy groups to form a bicyclic structure. Furthermore, the reaction of amine-cured epoxy resin with phenylboronic acid was extended to the reaction system of polybenzoxazine, which is attracting attention as a next-generation phenolic resin, with phenylboronic acid, and it was found that polybenzoxazine after curing can be chemically modified by boronic acid derivatives.
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| Free Research Field |
高分子化学
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| Academic Significance and Societal Importance of the Research Achievements |
エポキシ樹脂は三次元架橋高分子であり、詳細な構造解析なども難しく、その後天的化学修飾は極めてチャレンジングなターゲットであった。本研究ではこれまでとは全く異なるアプローチで、B-N配位結合を駆使したアミン硬化エポキシ樹脂の革新的化学修飾法の開発することができた。さらに、次世代型フェノール樹脂として注目されているポリベンゾオキサジンとフェニルボロン酸との反応系に展開し、硬化後のポリベンゾオキサジンを後天的に改質できた。一連の研究成果は、新しい学術分野の開拓という視点のみならず、将来の産業応用展開も含めて、大きな波及効果が期待される。
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