Self-assembly of chiral networks in achiral block copolymer systems using coarse-grained simulations

Ordered network materials, such as the double gyroid, are comprised of two interwoven networks embedded in a matrix and can be formed via the self-assembly of block copolymers. Using a triblock copolymer, one can form an alternating gyroid thereby breaking network symmetry and resulting in a structurally chiral morphology. In this talk, we investigate the self-assembly of model achiral block copolymers into gyroid morphologies using coarse-grained molecular simulation. By co-assembling with a selective homopolymer, the thermodynamic stability of the morphology is further improved. The geometric topology is quantified, and the effect of varying volume fraction on net chirality is explored.