Defects in lamellar diblock copolymers: Chevron-and Ω-shaped tilt boundaries Academic Article uri icon


  • Abstract The lamellar phase in diblock copolymer systems appears as a result of a competition between molecular and entropic forces, which selects a preferred periodicity of the lamellae. Grain boundaries are formed when two grains of different orientations meet. We investigate the case where the lamellae meet symmetrically with respect to the interface. The form of the interface strongly depends on the angle, θ, between the normals of the grains. When this angle is small, the lamellae transform smoothly from one orientation to …

publication date

  • March 1, 2000