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(a–c) Examples of the swelling curves during continuous annealing process. Thickness of swollen films was monitored by in situ ellipsometry. Inset in (a) illustrates the initial fast regime of the solvent uptake. Inset in (b) is an optical image of Polystyrene-b-poly(2-vinyl pyridine) (PS-PVP) film showing characteristic terracing upon condensation of the solvent on the film surface in the course of annealing.
