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AFM images (a–d) show PS-b-P2VP films annealed to a solvent concentration (ϕs) value of 0.69 and held at this value for different amounts of time (ST = 60, 200, 480, and 1200 s). (e–h) are annealed to ϕs = 0.83 and held for the same timescales. Corresponding Fourier transforms are shown in the inset. (j) The swelling profiles for (e–h), as a function of ϕs and swelling ratio. (k) The variation of the correlation length ξ with swelling time. All scale bars are 1 μm.
