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Main characteristic peaks of PLLA and PLLA/PANI.
| PLLA/PANI (cm−1) | PLLA (cm−1) | Bond vibration |
|---|---|---|
| 3,424 | 3,448 | O–H stretching |
| 2,936 | 2,939 | C–H stretching |
| 1715 | 1754 | C=O stretching |
| 1,468 | – | C=C stretching in benzene ring |
| 1544 | ||
| 1,305 | – | C–N stretching |
| 3,440 | – | N–H bending |
| 1,156 | 1,190 as | COC stretching |
| 1,059 | 1,080 s | |
| 815 | – | C–H out of plane bending |
| 1,377 | 1,385 | CH3 s |
| 1,453 | 1,460 | CH3 as |
| 1,031 | 1,038 | C–CH3 |
| 814 | 865 | OCC |
