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Symmetric Diblock Copolymers in Thin Films (II): Comparison of Profiles between Self-Consistent Field Calculations and Monte Carlo Simulations

Thorsten Geisinger·Marcus Mueller·Kurt Binder
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Abstract

The structure of lamellar phases of symmetric $AB$ diblock copolymers in a thin film is investigated. We quantitatively compare the composition profiles and profiles of individual segments in self-consistent field calculations with Monte Carlo simulations in the bond fluctuation model for chain length N=32 and $χN=30$. Three film thicknesses are investigated, corresponding to parallel oriented lamellae with 2 and 4 interfaces and a perpendicular oriented morphology. Taking account of capillary waves, we find good quantitative agreement between the Monte Carlo simulations and the self-consistent field calculations. However, the fluctuations of the local interfacial position are strongly suppressed by confinement and mutual interactions between lamellae.

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Thorsten Geisinger, Marcus Mueller, Kurt Binder. 1999-06-08. Symmetric Diblock Copolymers in Thin Films (II): Comparison of Profiles between Self-Consistent Field Calculations and Monte Carlo Simulations. https://doi.org/10.1063/1.479823

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