Two-Level Structured Self-Adaptive Surfaces with Reversibly Tunable Properties
Journal of the American Chemical Society2003Vol. 125(13), pp. 3896–3900
Citations Over TimeTop 1% of 2003 papers
Abstract
We report a route to fabricate two-level structured self-adaptive surfaces (SAS) of polymer materials. The first level of structure is built by a rough polymer film that consists of needlelike structures of micrometer size. The second level of structure is formed by the nanoscopic self-assembled domains of a demixed polymer brush irreversibly grafted onto the needles. By exposing the surface to solvents that are selective to one of the components of the brush, we reversibly tune the surface properties. The large-scale surface structure amplifies the response and enables us to control wettability, adhesion, and chemical composition of the surface over a wide range.
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