178973.fig.005a
(a)
178973.fig.005b
(b)
178973.fig.005c
(c)
178973.fig.005d
(d)
178973.fig.005e
(e)
178973.fig.005f
(f)
178973.fig.005g
(g)
Figure 5: SEM images of (a) pure TA, (b) 2% PU, (c) 5% PU, TA-PU films prepared by method I in ratios (d) 1 : 2, (e) 1 : 5, TA-PU films prepared by method II in ratios (f) 1 : 2, (g) 1 : 5.