142691.fig.004a
(a)
142691.fig.004b
(b)
Figure 4: SEM images of P(AN-VAc-PMMT) ((a) 0%, (b) 2%) electrospinning fibers processed in a capillary tube with an inner diameter of 0.7 mm at a voltage of 30 KV, a spinning distance of 25 cm, and a speed of 0.5 mL/h.