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Surface-Plasmon- and Green-Light-Induced Polymerization in Mesoporous Thin Silica Films

John, Daniel ; Mohammadi, Reza ; Vogel, Nicolas ; Andrieu-Brunsen, Annette (2022):
Surface-Plasmon- and Green-Light-Induced Polymerization in Mesoporous Thin Silica Films. (Postprint)
In: Langmuir, 36 (7), ACS Publications, ISSN 0743-7463, e-ISSN 1520-5827,
DOI: 10.26083/tuprints-00021742,
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Item Type: Article
Origin: Secondary publication service
Status: Postprint
Title: Surface-Plasmon- and Green-Light-Induced Polymerization in Mesoporous Thin Silica Films
Language: English
Abstract:

The near-field of surface plasmon resonances at planar metal surfaces is confined to the nanoscale, but its resonance wavelength is located in the visible light range, making it interesting for confining polymer functionalization of surfaces but incompatible with the majority of polymerization reactions. Here, fluorescein as a polymerization initiator allowing dye-sensitized polymerization with green light (438–540 nm) is demonstrated to allow polymer functionalization of mesoporous films deposited onto planar silver metal layers. The fluorescein-induced polymer functionalization of mesoporous silica films is investigated with respect to the influence of irradiation power and irradiation time and its potential to generate polymer gradients. Finally, the polymer functionalization of mesoporous films upon surface-plasmon-initiated polymerization is demonstrated. Polymer functionalization thereby determines pH-responsive ionic mesopore accessibility. Consequently, these results present a sound basis for further nanoscale near-field-induced polymer functionalization of porous films.

Journal or Publication Title: Langmuir
Volume of the journal: 36
Issue Number: 7
Place of Publication: Darmstadt
Publisher: ACS Publications
Collation: 30 Seiten
Uncontrolled Keywords: mesoporous silica thin films, hybrid materials, surface plasmon induced polymerization, visible light mediated polymerization, light power dependence
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: Profile Areas > Thermo-Fluids & Interfaces
07 Department of Chemistry > Fachgebiet Makromolekulare Chemie
Date Deposited: 21 Jul 2022 13:14
Last Modified: 21 Jul 2022 13:14
DOI: 10.26083/tuprints-00021742
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-217425
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21742
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