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Acid number (AN) and grafting degree (GD) results of sample M4 and M5 were synthesized in a solvent system without and with an inert atmosphere, respectively.
| Sample | AN (mg KOH/g PLA) | GD (%) |
|---|---|---|
| PLA | 9.1 ± 0.7 | - |
| M4 | 14.0 ± 0.5 | 0.39 ± 0.06 |
| M5 | 25.1 ± 1.6 | 1.35 ± 0.14 |
