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Surface composition (atomic %) of the pristine and plasma-treated polymer samples determined by X-ray photoelectron spectroscopy (XPS).
| Sample | C | C CO | O | N | O/C ratio |
|---|---|---|---|---|---|
| PA6 pristine | 82.6 | - | 8.8 | 8.6 | |
| Corrected | 73.8 | - | 12.8 | 12.5 | 0.17 |
| PA6 treated | 67.3 | - | 20.3 | 13.1 | 0.30 |
| POM-C pristine | 22.5 | 38.4 | 39.0 | - | 1.01 |
| POM-C treated | 5.8 | 47.7 | 46.5 | - | 0.97 |
