Research Article

Preparation and Characterization of a Bioartificial Polymeric Material: Bilayer of Cellulose Acetate-PVA

Figure 2

SEM images for the surface of the prepared materials. (a) CA air side; (b) CA substrate side; (c) CA + ADD air side; (d) CA + ADD substrate side; (e) bilayer: CA + ADD interface; (f) bilayer: CA + ADD substrate side; and (g) cross section of the BAPM (bilayer structure).
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