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a, f, g) RMS roughness as a function of applied strain for 8-layer 30% AAc microgels/400-500 kDa PDADMAC films. Maximal strain a) 30%, f) 20%, g) 10%. b-e) Representative AFM images obtained during in situ stretching of the films. Film roughness remains relatively constant as the degree of strain increases (b, c), then buckling occurs as the stress is removed (c, d). Wetting of the films leads to restoration of the initial roughness (d, e). All AFM images are 40 μm × 40 μm.
