Superhydrophobic Surfaces on Phase-separated Nanostructures of Polystyrene/Polymethyl Methacrylate Films Fabricated by the Double-spray Technique
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- Watanabe Satoshi
- Department of Applied Chemistry and Biochemistry, Kumamoto University
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- Fujisaki Motoharu
- Department of Materials Science and Technology, Tokyo University of Science
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- Murai Kazuki
- Faculty of Textile Science and Technology, Shinshu University
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- Matsumoto Mutsuyoshi
- Department of Materials Science and Technology, Tokyo University of Science
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<p>Rapid large-area printing techniques are required to fabricate superhydrophobic surfaces of polymer films on solid substrates. Here, we report a double-spray technique for fabrication of mixed phase-separated films of polystyrene (PS), poly(methyl methacrylate) (PMMA), and PS-b-PMMA. The surface wettability of the films changes to superhydrophobic by immersing the samples in cyclohexane, which is a good solvent for only PS. The rinsing process forms nanostructures in the remaining PMMA films that have flat surfaces before the rinsing treatment. The highest contact angle is about 150° on the film with a PMMA ratio of 0.2. X-ray photoelectron spectroscopy shows that a small amount of PS remains on the surface of the PMMA films, making the films superhydrophobic. Addition of PS-b-PMMA to the PS/PMMA films forms smaller phase-separated structures than those in the original PS/PMMA films because of an increase in the compatibility between PS and PMMA. The contact angle hysteresis in the films decreases with increasing PS-b-PMMA ratio, indicating an increase in the homogeneity of the phase-separated structures.</p>
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 67 (9), 1101-1105, 2018
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390564238018463104
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- NII論文ID
- 130007479586
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- NII書誌ID
- AA11503337
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 029172298
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- PubMed
- 30111680
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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