Table 6.
Peaks assigned to specific vibrations of functional groups determined in the FTIR analysis of compositions E0_1 and E0_2.
| E0_1 | E0_2 | ||
|---|---|---|---|
| Wavenumber [cm−1] | Corresponding Band | Wavenumber [cm−1] | Corresponding Band |
| 3256.22 | Stretching OH from PVA | 3273.57 | Stretching OH from PVA |
| 2926.45 | Asymmetric stretching of CH2 from PVA | 2925.48 | Asymmetric stretching of CH2 from PVA |
| 1740.44 | Symmetric stretching of C=O from PVP | 1742.37 | Symmetric stretching of C=O from PVP |
| 1428.03 | Symmetric deformation of CH from PVA | 1428.99 | Symmetric deformation of CH from PVA |
| 1319.07 | Stretching asymmetric due to CH-OH from ethanol | ||
| 1289.18 | Deformation of CH from PVA | 1286.29 | Deformation of CH from PVP |
| 1234.22 | Stretching secondary C=O from GTA | ||
| 1084.76 | Stretching of C-N from PVP | 1085.73 | Stretching of C-N from PVP |
| 921.807 | Deformation C-H from PVP | 923.736 | Deformation C-H from PVP |
| 835.026 | Stretching C-C from PVA | 845.633 | Stretching C-C from PVA |