Surface-induced structure formation of polymer blends on patterned substrates

Martin Böltau, Stefan Walheim, Jürgen Mlynek, Georg Krausch and Ullrich Steiner ()
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Martin Böltau: Fakultt für Physik, Universität Konstanz
Stefan Walheim: Fakultt für Physik, Universität Konstanz
Jürgen Mlynek: Fakultt für Physik, Universität Konstanz
Georg Krausch: Fakultt für Physik, Universität Konstanz
Ullrich Steiner: Fakultt für Physik, Universität Konstanz

Nature, 1998, vol. 391, issue 6670, 877-879

Abstract: Abstract Phase separation in bulk mixtures commonly leads to an isotropic, disordered morphology of the coexisting phases1. The presence of a surface can significantly alter the phase-separation process, however2,3. Here we show that the domains of a phase-separating mixture of polymers in a thin film can be guided into arbitrary structures by a surface with a prepatterned variation of surface energies. Such a pattern can be imposed on a surface by using printing methods for depositing microstructured molecular films4, thereby allowing for such patterns to be readily transferred to a two-component polymer film. This approach might provide a simple means for fabricating polymer-based microelectronic circuits5 or polymer resists for lithographic semiconductor processing.

Date: 1998
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DOI: 10.1038/36075

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