Self-Assembly Investigations of Sulfonated Poly(methyl methacrylate-block-styrene) Diblock Copolymer Thin Films

Figure 5

AFM height images of a highly sulfonated BC (M2_52/s48) subjected to different annealing treatments. (a) Thermally annealed (TA) at 170°C for 24 h. (b) SVA treated with THF (3 h), (c) SVA treated in a mixture of toluene/dioxane (50/50 v/v % for 3h). (d) SVA treated with dioxane for 3 h.

(a)

(b)

(c)

(d)