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Solution properties and characteristics of the PAA, PU, and PA-6 nanofibers.
| Polymer | Contents of NaCl (wt%) | Voltage (kV) | Viscosity (cps) | Conductivity (μS m−1) | Average fiber diameter (nm) | Average nanowire diameter (nm) | BET surface area (m2 g−1) |
|---|---|---|---|---|---|---|---|
| PAA | – | 30 | 336 | 6.4 | 835 | 30 | 3.30 |
| 0.1 | 30 | 337 | 240 | 526 | 20 | 6.57 | |
| 0.2 | 30 | 330 | 412 | 850 | 28 | 5.91 | |
| PU | – | 30 | 2900 | 5.44 | 464 | – | – |
| 0.05 | 30 | 2200 | 259.7 | 450 | 35 | – | |
| 0.1 | 30 | 2000 | 272.5 | 418 | 31 | – | |
| PA-6 | – | 20 | 60 | ∼280 | ∼350 | – | – |
| 1.5 | 20 | 6 | ∼640 | ∼250 | 15 | – | |
| 2.5 | 20 | 5 | ∼725 | ∼200 | – | – | |
