789289.fig.003a
(a)
789289.fig.003b
(b)
789289.fig.003c
(c)
789289.fig.003d
(d)
Figure 3: FESEM images of polystyrene fibers produced from polystyrene solutions of varying volatility: (a) 100% THF; (b) 75% THF/25% DMF; (c) 50% THF/50% DMF; (d) 100% DMF. Adapted from Megelski et al. [79].