초록 |
Self assembly of block copolymers in thin film has been successfully used in fabrication of nanoscale templates. Morphology of the block copolymer thin film can be complicated due to the film thickness constraints and interfacial interactions. In this research, we used the diblock copolymer PS-PEO(15k-5k), and observed the unexpected structure by using thermal annealing instead of solvent annealing, generally used. Salt complexation in the thin film influenced the morphology of PS-b-PEO. Tapping-mode AFM, GI-SAXS and other ways were employed to characterize the ordered structure of the PS-b-PEO diblock copolymer thin film. |