Table 2. Results of Molecular Weights, Polydispersity Index, and Yield of fGO/PCL Nanocompositesa.
| sample | Mn (g/mol) | Mw (g/mol) | Mw/Mn | yield (%) |
|---|---|---|---|---|
| 0.19 wt % fGO/PCL | 14 900 | 15 600 | 1.05 | 85 |
| 0.36 wt % fGO/PCL | 11 800 | 12 600 | 1.07 | 90 |
| 0.37 wt % fGO/PCL* | 10 900 | 15 900 | 1.46 | 88 |
a
Reaction conditions: GO 5 mg or 10 mg; ε-CL 26 mmol; 1-NM and butanol 0.2 mmol; DMF 3 mL; tin(II) 2-ethylhexanoate catalytic amounts; T = 75 °C; t = 18 h. Reaction conditions for *: GO 46 mg; ε-CL 120 mmol; 1-NM 0.2 mmol; DMF 4 mL; tin(II) 2-ethylhexanoate catalytic amounts; T = 75 °C; t = 64 h.