ダウンロード数: 206
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
j.jcis.2016.08.055.pdf | 534.58 kB | Adobe PDF | 見る/開く |
タイトル: | Surface properties of a single perfluoroalkyl group on water surfaces studied by surface potential measurements |
著者: | Shimoaka, Takafumi https://orcid.org/0000-0001-9131-9831 (unconfirmed) Tanaka, Yuki Shioya, Nobutaka https://orcid.org/0000-0002-2915-894X (unconfirmed) Morita, Kohei Sonoyama, Masashi Amii, Hideki Takagi, Toshiyuki Kanamori, Toshiyuki Hasegawa, Takeshi https://orcid.org/0000-0001-5574-9869 (unconfirmed) |
著者名の別形: | 下赤, 卓史 長谷川, 健 |
キーワード: | Langmuir monolayer Surface potential Single perfluoroalkyl chain Water surface |
発行日: | 1-Dec-2016 |
出版者: | Elsevier |
誌名: | Journal of Colloid and Interface Science |
巻: | 483 |
開始ページ: | 353 |
終了ページ: | 359 |
抄録: | A discriminative study of a single perfluoroalkyl (Rf) group from a bulk material is recently recognized to be necessary toward the total understanding of Rf compounds based on a primary chemical structure. The single molecule and the bulk matter have an interrelationship via an intrinsic two-dimensional (2D) aggregation property of an Rf group, which is theorized by the stratified dipole-arrays (SDA) theory. Since an Rf group has dipole moments along many C–F bonds, a single Rf group would possess a hydrophilic-like character on the surface. To reveal the hydration character of a single Rf group, in the present study, surface potential (ΔV) measurements are performed for Langmuir monolayers of Rf-containing compounds. From a comparative study with a monolayer of a normal hydrocarbon compound, the hydration/dehydration dynamics of a lying Rf group on water has first been monitored by ΔV measurements, through which a single Rf group has been revealed to have a unique “dipole-interactive” character, which enables the Rf group interacted with the water ‘surface.’ In addition, the SDA theory proves to be useful to predict the 2D aggregation property across the phase transition temperature of 19 °C by use of the ΔV measurements. |
著作権等: | © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 1 December 2018 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. 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。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/216978 |
DOI(出版社版): | 10.1016/j.jcis.2016.08.055 |
PubMed ID: | 27569518 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。