Wetting dynamics of polymeric liquids at nanoscale
Marion Grzelka, 36 months starting January 1st 2025
The DYNAMO project aims at understanding how the wetting dynamics of polymeric liquids is correlated to the nanometric roughness, present on all usual surfaces. Through a multidisciplinary approach combining physics and surface chemistry, I propose systematic model experiments that allow a multiscale visualization and characterization of the spreading of a polymer drop. The goal is to compare and model the energy dissipation mechanisms (viscous, viscoelastic, frictional…) competing between nanometric roughness (topographic or chemical) and the propagation of a nanometric film, so-called precursor film, spreading ahead of the macroscopic drop.
