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| Sample codes | NCO content | PEG (g) | PCL (g) | HDI (g) | TDI (g) | |
|---|---|---|---|---|---|---|
| Experimental | Theoretical | |||||
| PU1 | 5.42 | 5.40 | 3.33 | — | — | 0.75 |
| PU2 | 7.81 | 7.78 | 3.33 | — | 0.73 | — |
| PU3 | 8.55 | 8.51 | 3.00 | 0.33 | — | 0.75 |
| PU4 | 10.60 | 10.56 | 3.00 | 0.33 | 0.73 | — |
