Research Article

Assembly of Oriented Ultrafine Polymer Fibers by Centrifugal Electrospinning

Figure 2

(a) SEM images of aligned straight PS fibers electrospun at conditions of 3.0 kV, 420 rpm, and 2.5 cm. Inserted is a SEM image with larger magnification. (b) Distributions of the degree of alignment ( ) defined by the difference between the angles of orientation ( ) of fibers and the long axis.
713275.fig.002a
(a)
713275.fig.002b
(b)