Li, Xiaomei ; Encheva, Mirela ; Butt, Hans-Jürgen ; Backus, Ellen H. G. ; Berger, Rüdiger (2022)
Adaptation and Recovery of a Styrene‐Acrylic Acid Copolymer Surface to Water.
In: Macromolecular Rapid Communications, 43 (12)
doi: 10.1002/marc.202100733
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Drops sliding down an adaptive surface lead to changes of the dynamic contact angles. Two adaptation processes play a role: 1) the adaptation of the surface upon bringing it into contact to the drop (wetting) and 2) the adaptation of the surface after the drop passed (dewetting). In order to study both processes, the authors investigate samples made from random styrene (PS)/acrylic acid (PAA) copolymers, which are exposed to water. Sum-frequency generation spectroscopy and tilted-plate measurements indicate that during wetting, the PS segments displace from the interface, while PAA segments are enriched. This structural adaptation of the PS/PAA random copolymer to water remains after dewetting. Annealing the adapted polymer induces reorientation of the PS segments to the surface.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Li, Xiaomei ; Encheva, Mirela ; Butt, Hans-Jürgen ; Backus, Ellen H. G. ; Berger, Rüdiger |
| Art des Eintrags: | Bibliographie |
| Titel: | Adaptation and Recovery of a Styrene‐Acrylic Acid Copolymer Surface to Water |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Weinheim |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Macromolecular Rapid Communications |
| Jahrgang/Volume einer Zeitschrift: | 43 |
| (Heft-)Nummer: | 12 |
| Kollation: | 6 Seiten |
| DOI: | 10.1002/marc.202100733 |
| Kurzbeschreibung (Abstract): | Drops sliding down an adaptive surface lead to changes of the dynamic contact angles. Two adaptation processes play a role: 1) the adaptation of the surface upon bringing it into contact to the drop (wetting) and 2) the adaptation of the surface after the drop passed (dewetting). In order to study both processes, the authors investigate samples made from random styrene (PS)/acrylic acid (PAA) copolymers, which are exposed to water. Sum-frequency generation spectroscopy and tilted-plate measurements indicate that during wetting, the PS segments displace from the interface, while PAA segments are enriched. This structural adaptation of the PS/PAA random copolymer to water remains after dewetting. Annealing the adapted polymer induces reorientation of the PS segments to the surface. |
| Freie Schlagworte: | SFB1194_C07 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen |
| Hinterlegungsdatum: | 07 Dez 2023 12:17 |
| Letzte Änderung: | 07 Dez 2023 12:17 |
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