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(a) Weight fraction of water as a function of N, obtained following the methodology proposed by Vöros [38], for (PDADMAC + PSS)N films formed at two different ionic strengths: 0.10 M (solid squares) and 0.50 M (open circles). (b) ) Weight fraction of water as a function of the ionic strength for (PDADMAC + PSS)N films: obtained through the methodology proposed by Vöros [38] (solid triangles) and through XPS (open triangles). The solid lines are to guide the eye.
