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Surface and Bulk Relaxation of Vapour-Deposited Polystyrene Glasses

hal.structure.identifierUniversity of Waterloo [Waterloo]
dc.contributor.authorYIN, Junjie
hal.structure.identifierUniversity of Oslo [UiO]
dc.contributor.authorPEDERSEN, Christian
hal.structure.identifierUniversity of Waterloo [Waterloo]
dc.contributor.authorTHEES, Michael
hal.structure.identifierUniversity of Oslo [UiO]
dc.contributor.authorCARLSON, Andreas
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierUniversity of Waterloo [Waterloo]
dc.contributor.authorFORREST, James
dc.date.issued2023
dc.identifier.issn0021-9606
dc.description.abstractEnWe have studied the liquid-like response of the surface of vapour-deposited glassy films of polystyrene to the introduction of gold nanoparticles on the surface. The build-up of polymer material was measured as a function of time and temperature for both as-deposited films, as well as films that have been rejuvenated to become normal glasses cooled from the equilibrium liquid. The temporal evolution of the surface profile is well described by the characteristic power law of capillary-driven surface flows. In all cases, the surface evolution of the as-deposited films and the rejuvenated films are enhanced compared to bulk and are not easily distinguishable from each other. The temperature dependence of the measured relaxation times determined from the surface evolution is found to be quantitatively comparable to similar studies for high molecular weight spincast polystyrene. Comparisons to numerical solutions of the glassy thin film equation provide quantitative estimates of the surface mobility. For temperatures sufficiently close to the glass-transition temperature, particle embedding is also measured and used as a probe of bulk dynamics, and in particular bulk viscosity.
dc.description.sponsorshipMouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010
dc.description.sponsorshipCapteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029
dc.description.sponsorshipFrottements dans les systèmes complexes
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enSurface and Bulk Relaxation of Vapour-Deposited Polystyrene Glasses
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.identifier.arxiv2211.04873
dc.description.sponsorshipEuropeBrownian Motion near Soft Interfaces
bordeaux.journalJournal of Chemical Physics
bordeaux.page094901
bordeaux.volume158
bordeaux.peerReviewedoui
hal.identifierhal-03843477
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03843477v1
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