Viscoelastic leveling of annealed thin polystyrene films.

  title={Viscoelastic leveling of annealed thin polystyrene films.},
  author={Etienne Rognin and St{\'e}fan Landis and Laurent Davoust},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={30 23},
Theoretical and experimental work on nanoscale viscoelastic flows of polystyrene melts is presented. The reflow above the glass transition temperature (T(g)) of a continuous patterned film is characterized. Attention is paid to the topographical consequences of the flow rather than to the temporal description of the leveling of the film. In the framework of capillary wave theory, it is shown that only the shortest spatial wavelengths of the topography exhibit an elastic behavior, while long… CONTINUE READING