| Project/Area Number |
18K05238
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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 35020:Polymer materials-related
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| Research Institution | Kumamoto University |
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Principal Investigator |
Kim sunnam 熊本大学, 大学院先端科学研究部(工), 助教 (00612532)
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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 |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | block copolymer / photonic crystal / self assembly / 構造色 / ブロック共重合体 / 自己組織化 / アゾベンゼン / 光応答性 |
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| Outline of Final Research Achievements |
In this study, we synthesized an amphipathic block copolymer (BCP) for the purpose of developing a polymer periodic structure having a huge period length that diffracts visible light. By utilizing the self-assembly that occurs in the solution, a periodic structure can be formed in a short time, and the expansion of the molecular chain was obtained by utilizing the repulsion due to ionization. Since the volume of the hydrophobic part is about 0.01% and the volume of the lattice points (aggregated hydrophobic parts) is very small compared to the period length, high controllability of the structural color can be expected.
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| Academic Significance and Societal Importance of the Research Achievements |
BCPの自己組織化により形成される周期構造体は、特にナノ構造制御の分野において興味深い現象である。特に、アゾベンゼン高分子の光異性化に伴う複屈折率特性の変化を利用することで、構造色の制御を達成するものであり、光と物質の相互作用を最大限に利用した独創性の高いアプローチと言える。得られた成果として、複雑な作製プロセスを必要としない塗布するだけで利用可能な表示材料が作製できる可能性を見出し、学術および応用の両観点において意義深いものである。
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