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Assignment of the bands in selected regions of FTIR spectra for the investigated compounds.
| PLA–PEG | Rap | EpoB | Assignment |
|---|---|---|---|
| 3500 | 3588 3577 sh 3419 |
3497 3395 |
Overtonevν OH |
| 3000–2700 | 3000–2700 | 3000–2700 | ν CH, CH2 |
| 1754 | ν C=O ester PLA | ||
| 1720 1645 1634 |
1746 1742 sh 1686 |
ν C=O ester free ν C=O ester bonded ν C=O ketone ν C=O amide (I amide bands) |
ν—stretching vibrations.
