English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the free-surface deformation dynamics of an immersed glassy thinpolymer film supported on a substrate, induced by an air nanobubble at the freesurface.We combine analytical and numerical treatments of the glassy thin filmequation, resulting from the lubrication approximation applied to the surfacemobile layer of the glassy film, under the driving of an axisymmetric stepfunction in the pressure term accounting for the nanobubble's Laplace pressure.Using the method of Green's functions, we derive a general solution for thefilm profile. We show that the lateral extent of the surface perturbationfollows an asymptotic viscocapillary power-law behaviour in time, and that thefilm's central height decays logarithmically in time in this regime. Thisprocess eventually leads to film rupture and dewetting at finite time, forwhich we provide an analytical prediction exhibiting explicitly thedependencies in surface mobility, film thickness and bubble size, among others.Finally, using finite-element numerical integration, we discuss how non-lineareffects induced by the curvature and film profile can affect the evolution.

Nanobubble-induced flow of immersed glassy polymer films