Speaker
Apostolos Vagias
(Institut Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France)
Description
Using a custom-designed pressure cell, we tune hydrostatic pressure and combine Grazing Incidence Small Angle Neutron Scattering (GISANS) with specular and off-specular reflectivity under pressure (P) to probe morphologies of soft matter layers immersed in heavy water at P = 1 bar and P = 800 bar. Our results reveal nanostructural rearrangements upon P-increase and chemical composition dependencies for strongly segregated (hydrophilic) PDMAEMA / (hydrophobic) POFPMA homopolymer brush mixtures vs. weakly segregated PDMAEMA/PMMA homopolymer brush mixtures anchored on Si substrate.
| Please select the related topic from the list below | Thin films and interfaces in soft matter and materials science |
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Primary author
Apostolos Vagias
(Institut Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France)
Co-authors
Dr
Theodore Manouras
(Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 700 13 Heraklion, Greece)
Mr
Andreas Buchner
(Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748 Garching, Germany)
philipp gutfreund
(Institut Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France)
lionel porcar
(Institut Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France)
Mr
Mark Jacques
(Institut Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France)
Leonardo Chiappisi
(Institut Laue-Langevin)
Mr
David P. Kosbahn
(Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany)
Marcell Wolf
(TUM - MLZ)
Dr
Laura Guasco
(Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569 Stuttgart, Germany)
Prof.
Reiner Dahint
(Applied Physical Chemistry, Institute for Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany)
Prof.
Maria Vamvakaki
(Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 700 13 Heraklion, Greece)
Prof.
Peter Müller-Buschbaum
(Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany)
