As a “bottom-up” approach to nanostructures for nanofabrication, self-assembled block
copolymer thin films have received much attention not only thanks to the scale of the microdomains
but also due to the convenient shape tunability. In order to realize applications of self-assembled
block copolymer thin films in nanotechnologies, control over microdomain spatial and orientational
order is paramount. In this paper, using atomic force microscopy (AFM), we studied systemically
nanostructure transitions induced by post-solvent annealing in self-assembled block copolymer thin
films. Furthermore, a variety of thin films with well-ordered nanostructures, which can be employed
as templates for nanotechnologies, have been realized simply and at low cost.
Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing