title: Slip vs. viscoelasticity in dewetting thin films.
abstract: Ultrathin polymer films on non-wettable substrates display dynamic features which have been attributed to either viscoelastic or slip effects. Here we show that in the weak- and strong-slip regime, effects of viscoelastic relaxation are either absent or essentially indistinguishable from slip effects. Strong slip modifies the fastest unstable mode in a rupturing thin film, which questions the standard approach to reconstruct the effective interface potential from dewetting experiments.
authors.affiliation: Biological Nanosystems, Interdisciplinary Research Institute, c/o IEMN Avenue Poincaré, BP 60069, F-59652, Villeneuve d'Ascq, France. ralf.blossey@iemn.univ-lille1.fr
authors.forename: R
authors.initials: R
authors.lastname: Blossey
authors.forename: A
authors.initials: A
authors.lastname: Münch
authors.forename: M
authors.initials: M
authors.lastname: Rauscher
authors.forename: B
authors.initials: B
authors.lastname: Wagner