Controlled polymer dewetting by physical confinement
| Autor: | K. Y. Suh, Hyunjung Lee, Joonhyung Park |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
chemistry.chemical_classification
Capillary wave Materials science Characteristic length Silicon General Physics and Astronomy chemistry.chemical_element Polymer chemistry.chemical_compound chemistry Dewetting Polystyrene Wetting Physical and Theoretical Chemistry Composite material Glass transition |
| Zdroj: | The Journal of Chemical Physics. 116:7714-7718 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.1467898 |
| Popis: | We report ordering of polymer drops that takes place when a thin polystyrene film confined by polydimethylsiloxane walls dewets on a silicon substrate. When annealed above the glass transition temperature, the thin polymer film dewets, resulting in the formation of a regular structure inside and outside the confinement. It is found that the ordering becomes strongly suppressed as the film thickness increases and the pattern size decreases due to the physical confinement of the mold. As a result, the ordering can take place only when the wavelength of the capillary wave is smaller than the characteristic length of the physical confinement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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