Grazing-incidence small-angle neutron scattering at high pressure (HP-GISANS): a soft matter feasibility study on grafted brush films
Grazing-incidence small-angle neutron scattering (GISANS) under pressure (HP-GISANS) at the solid (Si)–liquid (D 2 O) interface is demonstrated for the pressure-induced lateral morphological characterization of the nanostructure in thin (<100 nm) soft matter films. We demonstrate feasibility by investigating a hydrophobic {poly[(2,2,3,3,4,4,5,5-octafluoro)pentyl methacrylate]} (POFPMA)–hydrophilic {poly[2-(dimethylamino)ethyl methacrylate]} (PDMAEMA) brush mixture of strong incompatibility between the homopolymers, anchored on Si, at T = 45°C for two pressures, P = 1 bar and P = 800 bar. Our GISANS results reveal nanostructural rearrangements with increasing P , underlining P -induced effects in tethered polymer brush layers swollen with bulk solvent.
Authors
- Apostolos Vagias (ORCID: https://orcid.org/0000-0002-9892-8282)
- Axel Buchner (ORCID: https://orcid.org/0000-0003-4529-3444)
- Laura Guasco (ORCID: https://orcid.org/0000-0001-5823-3665)
- R. Dahint (ORCID: https://orcid.org/0000-0001-6715-1434)
- Maria Vamvakaki (ORCID: https://orcid.org/0000-0003-2150-9415)
- Leonardo Chiappisi (ORCID: https://orcid.org/0000-0002-4594-2865)
- Mark Jacques
- Lionel Porcar (ORCID: https://orcid.org/0000-0003-4674-7591)
- Marcell Wolf (ORCID: https://orcid.org/0000-0002-8523-7597)
- Philipp Gutfreund (ORCID: https://orcid.org/0000-0002-7412-8571)
- Peter Müller‐Buschbaum (ORCID: https://orcid.org/0000-0002-9566-6088)
- Theodore Manouras (ORCID: https://orcid.org/0009-0003-7498-8947)
- David P. Kosbahn (ORCID: https://orcid.org/0000-0001-8632-2059)
Institutions
- University of Crete (GR)
- Max Planck Society (DE)
- Heidelberg University (DE)
- Max Planck Institute for Solid State Research (DE)
- Heinz Maier-Leibnitz Zentrum (DE)
- Institut Laue-Langevin (FR)
- Technical University of Munich (DE)
- Foundation for Research and Technology Hellas (GR)
Publication Details
- Journal
- Journal of Applied Crystallography
- Published
- 2024-11-04
- DOI
- https://doi.org/10.1107/s1600576724009130
- Citations
- 3
- Primary Topic
- Adhesion, Friction, and Surface Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.81
Funders
- Bundesministerium für Bildung und Forschung