Journal Article

IMPULSE-2024-00200

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Grazing-incidence small-angle neutron scattering at high pressure (HP-GISANS): a soft matter feasibility study on grafted brush films

Vagias, A. (Corresponding author)MLZ* ; Manouras, T. ; Buchner, A.MLZ* ; Gutfreund, P. ; Porcar, L. ; Jacques, M. ; Chiappisi, L. ; Kosbahn, D. P. ; Wolf, M.MLZ* ; Guasco, L.MLZ* ; Dahint, R. ; Vamvakaki, M. ; Müller-Buschbaum, P.MLZ*

2024
Wiley-Blackwell [Erscheinungsort nicht ermittelbar]

Please use a persistent id in citations: doi:10.1107/S1600576724009130

Abstract: Grazing-incidence small-angle neutron scattering (GISANS) under pressure (HP-GISANS) at the solid (Si)–liquid (D2O) 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.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Soft Condensed Matter (2nd)

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Contributing Institute(s):

1. NREX (NREX)
2. TOFTOF (TOFTOF)
3. E13 (E13)

Experiment(s):

1. NREX: Neutron reflectometer with X-ray option (NL1)

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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