Coarse Graining in Block Copolymer Films
arXiv:cond-mat/0603096 · doi:10.1002/polb.20898
Abstract
We present few ordering mechanisms in block copolymer melts in the coarse-graining approach. For chemically homogeneous or modulated confining surfaces, the surface ordering is investigated above and below the order-disorder temperature. In some cases the copolymer deformation near the surface is similar to the copolymer morphology in bulk grain boundaries. Block copolymers in contact with rough surfaces are considered as well, and the transition from lamellae parallel to perpendicular to the surface is investigated as a function of surface roughness. Finally, we describe how external electric fields can be used to align block copolymer meso-phases in a desired direction, or to induce an order-order phase transition, and dwell on the role of mobile dissociated ions on the transition.
Review for special edition of Journal of Polymer Science part B:Polymer Physics
References in corpus (8)
- Thin Film Diblock Copolymers in Electric Field: Transition from Perpendicular to Parallel Lamellae
- Structural changes in block copolymers: coupling of electric field and mobile ions
- Orienting Ion-Containing Block Copolymers Using AC Electric Field
- Surface induced ordering in thin film diblock copolymers: tilted lamellar phases
- Diblock copolymer thin films: Parallel and perpendicular lamellar phases in the weak segregation limit
- Orientational transitions in symmetric diblock copolymers on rough surfaces
- Parallel and Perpendicular Lamellae on Corrugated Surfaces
- Block Copolymers in Electric Fields: A Comparison of Single-Mode and Self-Consistent Field Approximations