2024/10/17 by Apostolos Vagias, Theodore Manouras, Andreas Buchner +10 · 1 voice · 1 citation
Engineering · #Adhesion, Friction, and Surface Interactions #Electronic Packaging and Soldering Technologies #Tribology and Lubrication Engineering
paper · doi:10.1107/s1600576724009130
openalex publication_date 2024/10/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
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.