Zerball, Maximilian ; Laschewsky, André ; Köhler, Ralf ; Klitzing, Regine von (2021)
The Effect of Temperature Treatment on the Structure of Polyelectrolyte Multilayers.
In: Polymers, 2016, 8 (4)
doi: 10.26083/tuprints-00019056
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The study addresses the effect of thermal treatment on the internal structure of polyelectrolyte multilayers (PEMs). In order to get insight into the internal structure of PEMs, Neutron Reflectometry (NR) was used. PEMs with a deuterated inner block towards the substrate and a non-deuterated outer block were prepared and measured in 1% RH and in D2O before and after a thermal treatment. Complementarily, PEMs with the same number of layers but completely non-deuterated were investigated by ellipsometry. The analysis for the overall thickness (d), the average scattering length density (SLD) and the refractive index (n) indicate a degradation of the PEM. The loss in material is independent of the number of layers, i.e., only a constant part of the PEM is affected by degradation. The analysis of the internal structure revealed a more complex influence of thermal treatment on PEM structure. Only the outermost part of the PEM degenerates, while the inner part becomes denser during the thermal treatment. In addition, the swelling behavior of PEMs is influenced by the thermal treatment. The untreated PEM shows a well pronounced odd—even effect, i.e., PDADMAC-terminated PEMs take up more water than PSS-terminated PEMs. After the thermal treatment, the odd-even effect becomes much weaker.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Zerball, Maximilian ; Laschewsky, André ; Köhler, Ralf ; Klitzing, Regine von |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | The Effect of Temperature Treatment on the Structure of Polyelectrolyte Multilayers |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Publikationsdatum der Erstveröffentlichung: | 2016 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Polymers |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 4 |
| Kollation: | 16 Seiten |
| DOI: | 10.26083/tuprints-00019056 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/19056 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | The study addresses the effect of thermal treatment on the internal structure of polyelectrolyte multilayers (PEMs). In order to get insight into the internal structure of PEMs, Neutron Reflectometry (NR) was used. PEMs with a deuterated inner block towards the substrate and a non-deuterated outer block were prepared and measured in 1% RH and in D2O before and after a thermal treatment. Complementarily, PEMs with the same number of layers but completely non-deuterated were investigated by ellipsometry. The analysis for the overall thickness (d), the average scattering length density (SLD) and the refractive index (n) indicate a degradation of the PEM. The loss in material is independent of the number of layers, i.e., only a constant part of the PEM is affected by degradation. The analysis of the internal structure revealed a more complex influence of thermal treatment on PEM structure. Only the outermost part of the PEM degenerates, while the inner part becomes denser during the thermal treatment. In addition, the swelling behavior of PEMs is influenced by the thermal treatment. The untreated PEM shows a well pronounced odd—even effect, i.e., PDADMAC-terminated PEMs take up more water than PSS-terminated PEMs. After the thermal treatment, the odd-even effect becomes much weaker. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-190565 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Physik Kondensierter Materie (IPKM) |
| Hinterlegungsdatum: | 11 Aug 2021 13:02 |
| Letzte Änderung: | 16 Aug 2021 07:21 |
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| Suche nach Titel in: | TUfind oder in Google |
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- The Effect of Temperature Treatment on the Structure of Polyelectrolyte Multilayers. (deposited 11 Aug 2021 13:02) [Gegenwärtig angezeigt]
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