Krohm, F. ; Kind, J. ; Savka, R. ; Alcaraz Janßen, Marcel ; Herold, Dominik ; Plenio, H. ; Thiele, Christina Marie ; Andrieu-Brunsen, Annette (2021)
Photochromic spiropyran- and spirooxazine-homopolymers in mesoporous thin films by surface initiated ROMP.
In: Journal of Materials Chemistry C, 2016, 4 (18)
doi: 10.26083/tuprints-00019927
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The control of ionic permselectivity in porous films is an interesting aspect in the context of lab-on-chip devices and μ-electronics. Especially, visible light triggered ionic permselectivity control is of relevance because control by light can be maintained externally without changing internal system parameters. In addition, light is a sustainable energy source if sunlight is used. Here, we present the first mesoporous films modified with two different photochromic homopolymers by surface-initiated ring opening metathesis polymerization (SI-ROMP). Spiropyran- and spirooxazine functionalized norbornene monomers and the corresponding ROMP homopolymers are synthesized in solution and in mesopores and compared concerning their optical properties such as photochromic conversion kinetics, photostability, and the ratio of converted molecules. Optical properties are investigated using UV/VIS spectroscopy and 1H-NMR spectroscopy. Especially, spirooxazine, whose surface functionalization has not been studied in detail, shows fast switching properties and higher ratios of photochromically interconverted molecules. After grafting spiropyran- and spirooxazine norbornene homopolymers into mesopores, a slightly faster photochromic interconversion of polymers located inside the mesopores is observed compared to the solution polymers.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Krohm, F. ; Kind, J. ; Savka, R. ; Alcaraz Janßen, Marcel ; Herold, Dominik ; Plenio, H. ; Thiele, Christina Marie ; Andrieu-Brunsen, Annette |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Photochromic spiropyran- and spirooxazine-homopolymers in mesoporous thin films by surface initiated ROMP |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Publikationsdatum der Erstveröffentlichung: | 2016 |
| Verlag: | Royal Society of Chemistry (RSC) |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Chemistry C |
| Jahrgang/Volume einer Zeitschrift: | 4 |
| (Heft-)Nummer: | 18 |
| DOI: | 10.26083/tuprints-00019927 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/19927 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | The control of ionic permselectivity in porous films is an interesting aspect in the context of lab-on-chip devices and μ-electronics. Especially, visible light triggered ionic permselectivity control is of relevance because control by light can be maintained externally without changing internal system parameters. In addition, light is a sustainable energy source if sunlight is used. Here, we present the first mesoporous films modified with two different photochromic homopolymers by surface-initiated ring opening metathesis polymerization (SI-ROMP). Spiropyran- and spirooxazine functionalized norbornene monomers and the corresponding ROMP homopolymers are synthesized in solution and in mesopores and compared concerning their optical properties such as photochromic conversion kinetics, photostability, and the ratio of converted molecules. Optical properties are investigated using UV/VIS spectroscopy and 1H-NMR spectroscopy. Especially, spirooxazine, whose surface functionalization has not been studied in detail, shows fast switching properties and higher ratios of photochromically interconverted molecules. After grafting spiropyran- and spirooxazine norbornene homopolymers into mesopores, a slightly faster photochromic interconversion of polymers located inside the mesopores is observed compared to the solution polymers. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-199275 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| 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 Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie > Organometallchemie 07 Fachbereich Chemie > Eduard Zintl-Institut |
| Hinterlegungsdatum: | 19 Nov 2021 13:23 |
| Letzte Änderung: | 03 Jul 2024 02:40 |
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Verfügbare Versionen dieses Eintrags
- Photochromic spiropyran- and spirooxazine-homopolymers in mesoporous thin films by surface initiated ROMP. (deposited 19 Nov 2021 13:23) [Gegenwärtig angezeigt]
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