Origin of Microstructures from Confined Asymmetric Diblock Copolymers

The self-assembly of asymmetric diblock copolymers confined within cylindrical pores is studied using the self-consistent-field theory. The cylinder-forming asymmetric diblock copolymer is chosen to be near the cylinder−gyroid phase boundary in the intermediate segregation region. This choice makes the self-assembled cylindrical structure highly deformable, leading to very rich morphologies under confinement. A rich variety of structures, such …