Abstract
Using the Monte Carlo lattice-simulation technique, we present numerical evidence of the formation of gyroid and nongyroid tricontinuous cubic phases in high polymeric systems of triblock copolymer and homopolymer blends. By increasing the volume fraction of homopolymer, a remarkable phase sequence (gyroid) (diamond) (primitive) is observed, which is common to certain surfactant systems. Our results indicate that the triblock copolymer system with blending homopolymers may be a zoo of cubic phases, suitable for comparative studies of these phases.
- Received 10 May 2002
DOI:https://doi.org/10.1103/PhysRevLett.89.205502
©2002 American Physical Society