A direct quantitative measure of surface mobility in a glassy polymer
Thin polymer films have striking dynamical properties that differ from their bulk counterparts.
With the simple geometry of a stepped polymer film on a substrate, we probe mobility above …
With the simple geometry of a stepped polymer film on a substrate, we probe mobility above …
Self-similarity and energy dissipation in stepped polymer films
The surface of a thin liquid film with a nonconstant curvature is unstable, as the Laplace
pressure drives a flow mediated by viscosity. We present the results of experiments on one …
pressure drives a flow mediated by viscosity. We present the results of experiments on one …
Observation of general entropy–enthalpy compensation effect in the relaxation of wrinkled polymer nanocomposite films
Surface-textured polymer nanocomposite (PNC) films are utilized in many device
applications, and therefore understanding the relaxation behavior of such films is important …
applications, and therefore understanding the relaxation behavior of such films is important …
Approach to universal self-similar attractor for the levelling of thin liquid films
We compare the capillary levelling of a random surface perturbation on a thin polystyrene
film with a theoretical study on the two-dimensional capillary-driven thin film equation. Using …
film with a theoretical study on the two-dimensional capillary-driven thin film equation. Using …
Enhanced thermal stability of thermoplastic polymer nanostructures for nanoimprint lithography
Y Jiang, B Luo, X Cheng - Materials, 2019 - mdpi.com
Thermoplastic polymer micro-and nanostructures suffer pattern decay when heated to a
temperature close to or above the polymer's glass transition temperature. In this work, we …
temperature close to or above the polymer's glass transition temperature. In this work, we …
Relaxation and intermediate asymptotics of a rectangular trench in a viscous film
The surface of a thin liquid film with nonconstant curvature flattens as a result of capillary
forces. While this leveling is driven by local curvature gradients, the global boundary …
forces. While this leveling is driven by local curvature gradients, the global boundary …
Capillary leveling of freestanding liquid nanofilms
We report on the capillary-driven leveling of a topographical perturbation at the surface of a
freestanding liquid nanofilm. The width of a stepped surface profile is found to evolve as the …
freestanding liquid nanofilm. The width of a stepped surface profile is found to evolve as the …
Symmetry plays a key role in the erasing of patterned surface features
We report on how the relaxation of patterns prepared on a thin film can be controlled by
manipulating the symmetry of the initial shape. The validity of a lubrication theory for the …
manipulating the symmetry of the initial shape. The validity of a lubrication theory for the …
Viscoelastic effects and anomalous transient levelling exponents in thin films
We study theoretically the profile evolution of a thin viscoelastic film supported onto a no-slip
flat substrate. Due to the nonconstant initial curvature at the free surface, there is a flow …
flat substrate. Due to the nonconstant initial curvature at the free surface, there is a flow …
Influence of thermal diffusion and shear thinning during the leveling of nanoimprinted patterns in a polystyrene thin film
When capillary forces prevail, the leveling of the free surface of a fluid film is a natural
phenomenon that has already found applicative interest with brushmarks either for paint …
phenomenon that has already found applicative interest with brushmarks either for paint …