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j.jcis.2021.12.059.pdf | 1.47 MB | Adobe PDF | 見る/開く |
タイトル: | Perfluoroalkanes remain on water surface even after volatilization: Affinity analysis of fluorinated solvent with water surface |
著者: | Shimoaka, Takafumi https://orcid.org/0000-0001-9131-9831 (unconfirmed) Fukumi, Aki Shioya, Nobutaka https://orcid.org/0000-0002-2915-894X (unconfirmed) Hasegawa, Takeshi https://orcid.org/0000-0001-5574-9869 (unconfirmed) |
著者名の別形: | 下赤, 卓史 福海, 紅希 塩谷, 暢貴 長谷川, 健 |
キーワード: | Organofluorine compounds Fluorophilic property Air/water interface Infrared active surface modes Liquid particle Stratified dipole-arrays (SDA) theory Perfluorobenzene |
発行日: | Apr-2022 |
出版者: | Elsevier BV |
誌名: | Journal of Colloid and Interface Science |
巻: | 611 |
開始ページ: | 390 |
終了ページ: | 396 |
抄録: | Perfluoroalkyl (Rf) compounds are known to have a poor solubility for most solvents except fluorinated solvents, which is known as a fluorous property. In Langmuir (L) film studies of Rf compounds, fluorinated solvents such as perfluoro-n-alkanes are generally used as a good solvent for depositing a sample monolayer on the water surface. On the other hand, a single Rf chain with a short length such as C₆F₁₃– is known to exhibit a totally different character from a condensed matter to have a strong affinity to a water molecule on the water surface via the dipole–dipole interaction, which is known as the dipole interactive (DI) property. On considering the DI property, the solvents of perfluoro-n-alkanes would remain on water for a long time, which may disturb the formation of L film on water. In the present study, details of a liquid layer of perfluoro-n-alkanes on water are investigated by using infrared external reflection (IR ER) spectrometry. Although the perfluoro-n-alkanes are highly volatile, the relevant vibration bands did not disappear even after two hours, which means that they remain on the water surface. Fortunately, however, the remained solvent, C₆F₁₄, has been found no disturbing factor for preparation of L films. |
著作権等: | © 2021. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license. The full-text file will be made open to the public on 1 April 2024 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/275442 |
DOI(出版社版): | 10.1016/j.jcis.2021.12.059 |
PubMed ID: | 34959011 |
出現コレクション: | 学術雑誌掲載論文等 |
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