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True density values of ketoprofen and studied polymers. Values are presented as an average ± standard deviation. * Value determined by reducing the crystalline density by 5%.
| Material | True Density (g/cm3) |
|---|---|
| Crystalline ketoprofen | 1.25 ± 0.01 |
| Amorphous ketoprofen* | 1.19 ± 0.01 |
| PVP 17 | 1.20 ± 0.00 |
| PVP 30 | 1.20 ± 0.00 |
| PVP 90 | 1.24 ± 0.00 |
| VP:VA 7:3 | 1.21 ± 0.00 |
| VP:VA 3:7 | 1.23 ± 0.00 |
| PVAcetate | 1.22 ± 0.00 |
| PVAlcohol | 1.31 ± 0.00 |
| PVAP | 1.38 ± 0.02 |
