2023 Fiscal Year Final Research Report
Innovation in Control of Physical Properties of Polymer Thin-Film Materials by Micro-Morphology Analysis of Amorphous
| Project/Area Number |
21K18979
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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 34:Inorganic/coordination chemistry, analytical chemistry, and related fields
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2021-07-09 – 2024-03-31
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| Keywords | PFAS / フォノン / 単分子膜 / MAIRS / 非晶 |
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| Outline of Final Research Achievements |
The discrimination between phonon modes and ordinary infrared (IR) absorption is very important for the spectroscopic understanding of amorphous materials, but until now this discrimination has been difficult and has been the subject of much debate. In this study, we focused on the fact that phonons can be extracted as Berreman modes by selecting a thin film as the system, and demonstrated that this can be detected by the MAIRS method. For this purpose, partially fluorinated dimyristoyl phosphatidylcholine (DMPC) compounds containing double alkyl chains were prepared with both hydrocarbon and Rf chains and used to inhibit the self-assembly of Rf groups in the films. As a result, we confirmed that the phonon properties almost disappeared in the MAIRS spectra, as expected.
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| Free Research Field |
界面の振動分光学
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| Academic Significance and Societal Importance of the Research Achievements |
有機フッ素材料（PFAS）の分子集合を見極める技術は，現在，社会問題化しているPFASの毒性や環境蓄積性などを分子論的に議論するうえで，基盤技術となるものである．
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