Variable Responsive Wettability Films via Electrospinning Induced by Solvents

Figure 1

Typical SEM images of the PS films prepared by electrospinning. (a), (b), and (c) correspond to films I, II, and III which were fabricated from a 10 wt% solution of PS in DMF, CH₂Cl_2, and THF, respectively. The insets are photographs of water-droplet shape on the films I, II, and III, respectively.

(a)

(b)

(c)