Microphase Separation of a PS-b-PFS Block Copolymer via Solvent Annealing: Effect of Solvent, Substrate, and Exposure Time on Morphology

Scheme 1

Schematics of the possible structures of PS-b-PFS thin films on a substrate, (a) PFS cylinders contained within the PS matrix, and (b) PFS cylinders exposed at the surface.