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

Figure 1

FT-IR spectra of (a) a nonsulfonated PMMA-b-PS (M2_56/44 in Table 1) and of sulfonated BCs (PMMA-b-sPS in Table 2): (b) M2_56/s44 (DS = 87 %) and (c) M2_52/s48 (DS = 90 %).