Fig. 3: Macroscopic and nanoscopic morphology changes depending on normal forces and shear rates.

SEM images of the macroscopic morphologies and nanostructure orientations (inset) of the PS-b-PMMA films as the pressing heights were varied with (a) h = −0.02 mm, (b) h = −0.10 mm, and (c) h = −0.14 mm during shear-rolling at a shear rate of 5.0 s−1. d SEM images of macroscopic instability and nanostructure orientation (inset) of the PS-b-PMMA films at a pressing height of −0.14 mm and a shear rate of 10 s−1. e The macroscopic instability is indicated by different symbols and a color-coded contour plot of nanoscopic orientation order parameters against pressing height and shear rate. Source data are provided as a Source Data file.