par Hafner, Aljosa 
;Gutfreund, Philipp;Toperverg, Boris B.P.;Geoghegan, Mark;Sferrazza, Michele
Référence Journal of physics. Condensed matter, 33, 36, 364002
Publication Publié, 2021-09-01
;Gutfreund, Philipp;Toperverg, Boris B.P.;Geoghegan, Mark;Sferrazza, Michele Référence Journal of physics. Condensed matter, 33, 36, 364002
Publication Publié, 2021-09-01
Article révisé par les pairs
| Résumé : | Specular and off-specular neutron reflectometry have been used in a combined approach to study thin polymer films. Our goal in this work is to illustrate the power of the off-specular scattering technique to probe the properties of the buried interface of immiscible polymer bilayers of deuterated polystyrene and protonated poly(methyl methacrylate) (h-PMMA). The diffuse scattering stemming from these systems is discussed in relation to thermal fluctuations at the polymer/polymer interface, providing a means to extract in-plane correlation lengths from buried interfaces. In addition the onset of hole formation in the top layer is evidenced by the diffuse scattering, not easily detectable by specular reflection alone. |
