Fig. 2: Overview of primary analytical methods applied to characterize film surface structures of pure (single-component) BCP micelle assemblies.
From: Film surface assemblies from chemically distinct block copolymer micelles
a–c Top surface SEM micrographs and d–f, derived segmentations of pure (a, d) ISV121, (b, e) ISVO165, and (c, f) SVPS53 films evaporated for 80 s. Red, blue, green, and magenta pixels respectively represent ISV, ISVO, SVPS pores, and the solid matrix. Insets depict enlarged 250 × 250 nm regions highlighting the individual lattice geometries. g A coarse-grained ISV micelle, alongside enlarged Brownian Dynamics (BD) simulation box surface snapshots of square-packed (red) and hexagonally packed (green) single-component systems. h Pore size distributions (PSDs) of pure ISV121, ISVO165, and SVPS53 film surfaces derived from the segmentations in (d–f). i Fast Fourier transform (FFT) image analysis of (d–f) with lattice spacings derived from the first peak positions (q*) as labeled. Tick marks accompanying the ISV and ISVO traces correspond to (q/q*)2 = 1, 2, 4, 5, 8, 9, and 10, consistent with a 2D square lattice. Tick mark for SVPS trace correspond to (q/q*)2 = 1, 3, 4, and 7, consistent with a 2D hexagonal lattice.
