525419.fig.005a
(a)
525419.fig.005b
(b)
525419.fig.005c
(c)
525419.fig.005d
(d)
Figure 5: Morphologies of PHBV ultrafine fibers prepared by normal electrospinning (NE) (a, b) and dry-jet-wet-electrospinning (DJWE) (c, d). Collection distances were 6 cm for (a) and (c), 12 cm for (b) and (d).