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The effects of solution properties and polyelectrolyte on electrospinning of ultrafine poly(ethylene oxide) fibers |
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| Authors: | Won Keun Son Taek Seung Lee |
| Affiliation: | a Research Institute of Advanced Materials, Chungnam National University, 305-764 Daejeon, South Korea b Department of Textile Engineering, Inha University, 402-751 Incheon, South Korea c Department of Textile Engineering, Chungnam National University, 220 Gungdong, Yuseong-ku, 305-764 Daejeon, South Korea |
| Abstract: | The effects of solution properties and polyelectrolyte on the electrospinning of poly(ethylene oxide) (PEO) solutions were investigated. Ultrafine PEO fibers without beads were electrospun from 3, 4, 7 and 7 wt% PEO solutions in chloroform, ethanol, (dimethylformamide) DMF and water, respectively. At these concentrations, the values of η]C were ∼10 for all solutions. The average diameters of PEO fibers were ranged from 0.36 to 1.96 μm. The higher the dielectric constant of solvent was, the thinner PEO fiber was. The average diameters of electrospun PEO fibers from PEO/water solutions were decreased and their distributions were narrowed by adding 0.1 wt% poly(allylamine hydrochloride) (PAH) and poly(acrylic acid sodium salt) (PAA) due to the increased charge density in solutions. The addition of PAH and PAA lowered the minimum concentration for electrospinning of a PEO/water solution to 6 wt%. |
| Keywords: | Poly(ethylene oxide) Electrospinning Polyelectrolyte |
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