Table 1.
Persistence lengths and stiffnesses of PA nanofibers from AFM image analysis
| PA |
λ<Θ2> (μm) |
λ<R2> (μm) |
Trace length (μm) |
Counts |
Nanofiber diameter (nm) |
E (MPa) |
|---|---|---|---|---|---|---|
| 1 | 1.97 ± 0.35 | 2.00 ± 0.38 | 1.88 ± 0.25 | 43 | 7.2 | 62 |
| 2 | 11.0 ± 2.2 | 11.0 ± 2.0 | 2.27 ± 0.32 | 39 | 7.6 | 280 |
The persistence lengths λ<Θ2> and λ<R2> were estimated from the experimental angle and end-to-end distance distributions, respectively. An average of the two values was used to calculate a value for the Young's modulus E.