Ordered Morphologies of Confined Diblock Copolymers

Abstract

We investigate the ordered morphologies occurring in thin-films diblock copolymer. For temperatures above the order-disorder transition and for an arbitrary two-dimensional surface pattern, we use a Ginzburg-Landau expansion of the free energy to obtain a linear response description of the copolymer melt. The ordering in the directions perpendicular and parallel to the surface are coupled. Three dimensional structures existing when a melt is confined between two surfaces are examined. Below the order-disorder transition we find tilted lamellar phases in the presence of striped surface fields.

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Correspondence to Yoav Tsori.

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Tsori, Y., Andelman, D. Ordered Morphologies of Confined Diblock Copolymers. MRS Online Proceedings Library 651, 811 (2000). https://doi.org/10.1557/PROC-651-T8.1.1

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