Figure 10

Cross-sectional SEM images of (a) M-0, (b) M-1, (c) M-2, (d) M-3 and (e) M-4 membranes magnified at 800X and digital photographic image of (f) M-3 membrane.

Cross-sectional SEM images of (a) M-0, (b) M-1, (c) M-2, (d) M-3 and (e) M-4 membranes magnified at 800X and digital photographic image of (f) M-3 membrane.