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Topographical images (1.5 × 1.5 μm2) of patterns induced on films obtained from blending two PS solutions with Mw of 8 and 164 kDa. The ratio of the two solutions is (8 kDa/164 kDa): (A) 0/100, (B) 10/90, (C) 30/70, (D) 50/50, (E) 70/30, (F) 90/10, and (G) 100/0. The applied load is constant and equal to 10 nN. Reproduced with permission from [31]. Copyright 2001 American Chemical Society.
