2020 Fiscal Year Final Research Report
Molecular Interaction Analysis for Understanding Perfluoroalkyl Compound-Specific Properties
| Project/Area Number |
17K14502
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Keywords | 有機フッ素材料 / パーフルオロアルキル化合物 / 赤外分光法 / ラマン分光法 / アトロプ異性 |
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| Outline of Final Research Achievements |
In this project, we studied the intermolecular interactions between perfluoroalkyl (Rf) compounds and heterogeneous molecules. As a representative result, we found a characteristic property of liquid perfluoroalkanes on the water surface: those remain on the water surface for a long time. This result indicates that perfluoroalkane molecules have a good affinity at the air-water interface, although Rf compounds are known to have a low affinity to water in general. This property does not appear in non-fluorinated organic solvents. As a result, the specific character of perfluoroalkanes on the water surface is surely attributed to the molecular interactive force derived from the large dipole.
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| Free Research Field |
分析化学
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| Academic Significance and Societal Importance of the Research Achievements |
本課題では，パーフルオロアルキル（Rf）化合物が水面上で示す特徴的な性質を見出した．これは，Rf基間の相互作用が双極子支配であり，非フッ素系の化合物とは全く異なることを意味する．Rf化合物と水の界面でみられる親和性は，燃料電池のキーデバイスであるプロトン電導膜の性能の理解において重要であり，より高い性能を目指した材料開発に指針を与える成果といえる．
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