Issue 27, 2016

Frustrated phases under three-dimensional confinement simulated by a set of coupled Cahn–Hilliard equations

Abstract

We numerically study a set of coupled Cahn–Hilliard equations as a means to find morphologies of diblock copolymers in three-dimensional spherical confinement. This approach allows us to find a variety of energy minimizers including rings, tennis balls, Janus balls and multipods among several others. Phase diagrams of confined morphologies are presented. We modify the size of the interface between microphases to control the number of holes in multipod morphologies. Comparison to experimental observation by transmission electron microtomography of multipods in polystyrene–polyisoprene diblock copolymers is also presented.

Graphical abstract: Frustrated phases under three-dimensional confinement simulated by a set of coupled Cahn–Hilliard equations

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Article information

Article type
Paper
Submitted
19 Feb 2016
Accepted
08 Jun 2016
First published
08 Jun 2016

Soft Matter, 2016,12, 5905-5914

Frustrated phases under three-dimensional confinement simulated by a set of coupled Cahn–Hilliard equations

E. Avalos, T. Higuchi, T. Teramoto, H. Yabu and Y. Nishiura, Soft Matter, 2016, 12, 5905 DOI: 10.1039/C6SM00429F

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