Patent ID: 8518497

Claim:
A method for producing cylindrical nanostructures vertically aligned on substrates, comprising: preparing, by concurrent use of RAFT and ATRP, more than one block copolymer selected from poly(methyl methacrylate)-block-poly(2-(2-bromopropionyloxy)-ethyl acrylate)-graft-polystyrene, polystyrene-block-poly(2-(2-bromopropionyloxy)-ethyl acrylate)-graft-poly(methyl methacrylate), and poly(ethylene oxide)-block-poly(2-(2-bromopropionyloxy)-ethyl acrylate)-graft-polystyrene; forming a thin film of the block copolymer on a substrate by coating and carrying out heat treatment to form nanostructures including vertically aligned cylindrical microstructures; and irradiating ultraviolet rays to the thin film including cylindrical nanostructures vertically aligned on the substrates and carrying out oxygen plasma treatment to form nanostructured polymer thin films including cylindrical pores.