Characterization of Strong and Crystalline Polyvinyl Alcohol/Montmorillonite Films Prepared by Layer-by-Layer Deposition Method

Figure 5

(a, b) SEM micrographs of PVOH/MMT film down surface; (c, d) SEM micrographs of PVOH/MMT films up surface.

(a)

(b)

(c)

(d)