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Interior structure of PS fibers with different surface morphologies
| Concentration (%) | THF/DMF ratio | Interior structure | Cross section | Morphology |
|---|---|---|---|---|
| 20 |
4:1 |
Solid |
Heart-like |
Single grooved |
| 20 |
1:1 |
Porous |
Sawtooth |
Grooved |
| 20 |
0:6 |
Porous |
Circular |
Smooth |
| 10 |
1:1 |
Porous |
Sawtooth |
Grooved |
| 30 | 1:1 | Porous | Heart-like | Single grooved |
