Diblock Copolymer Thin Thin Film Melts on Striped Heterogeneous Surfaces: Parallel, Perpendicular and Mixed Lamellar Morphologies
We consider the problem of a diblock copolymer melt thin film on a striped surface. Because of the different surface energies, the different stripes have different preferences for each of the blocks, while the upper free surface may also prefer one of the blocks. As a result of a combination of factors such as the surface tensions and chain stretching, a number of morphologies may appear. We allow for perpendicular, parallel, and mixed type lamellae and study the resulting phase diagrams. These...[Show more]
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