Wetting Behavior of Homopolymer Films on Chemically Similar Block Copolymer Surfaces
- 18 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (3), 440-443
- https://doi.org/10.1103/physrevlett.73.440
Abstract
The wetting properties of thin polystyrene (PS) homopolymer films (polymerization index ) were studied on the surfaces of polyvinylpyridine-polystyrene (PVP-PS) block copolymer films (polymerization indices and ) oriented into lamellae with the PS block present at the vacuum interface. Autodewetting was observed on the diblock copolymer surface when , with a contact angle independent of , but decreasing with N. The dewetting nucleated at the base of islands on the ordered PVP-PS surfaces. The dewetting processes were explained using mean field theories and Monte Carlo simulations.
Keywords
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