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Different amount of the materials used for mPEG-SA synthesis
| Polymer | mPEG (g) | SA (g) | DMAP (g) |
|---|---|---|---|
| mPEG750-SA | 8 | 5.5 | 1.34 |
| mPEG2000-SA | 8 | 2 | 0.49 |
| mPEG5000-SA | 8 | 0.8 | 0.195 |
Abbreviations: CS, chitosan; DMAP, 4-dimethylaminopyridine; mPEG, methoxy poly(ethylene glycol); SA, succinic anhydride.
