Assembly of Oriented Ultrafine Polymer Fibers by Centrifugal Electrospinning
Figure 7
Optical microscope images of PMMA fibers electrospun at conditions of 4.5 kV, 420 rpm and 2.0 cm with PMMA/THF solution concentration of (a) 8.0 wt%, (b) 10.0 wt%, (c) 13.0 wt%, and (d) 15.0 wt%, respectively.
