Assembly of Oriented Ultrafine Polymer Fibers by Centrifugal Electrospinning
Figure 8
(a) Optical microscope image of PVP beaded fibers electrospun at conditions of 2.8 kV, 420 rpm, and 3.0 cm (the concentration of PVP/ethanol was 8.0 wt%). (b) SEM and (c) fluorescent microscope images of rhodamine B/PS beaded fibers electrospun at conditions of 5.0 kV, 420 rpm, and 2.0 cm (the concentration of PS/THF solution was 15.0 wt%). (d) Optical and (e) fluorescent microscope images of rhodamin B/PS uniform microfibers (the concentration of PS/THF solution was 18.0 wt%).