Phase diagrams of diblock copolymers in electric fields: a self-consistent field theory study.

摘要: We investigated the phase diagrams of diblock copolymers in external electrostatic fields by using real-space self-consistent field theory. The lamella, cylinder, sphere, and ellipsoid structures were observed analyzed their segment distributions, which arranged to two types examine behavior weak strong electric fields. One type was constructed on basis Flory-Huggins interaction parameter volume fraction. identified an structure with a body-centered cuboid arrangement as stable discussed shift boundaries other established dielectric constants blocks then determined regions influence transition between ellipsoidal hexagonally packed cylinder phases. A general agreement obtained comparing our results those described previous experimental theoretical studies.