Table 2. FTIR band assignments of PNVC, PPY, and PNVC–Ppy.
| Ppy | PNVC–Ppy | PNVC | Peak assignment |
|---|---|---|---|
| – | – | 3046 | C–H asymmetric stretching of aromatic structure |
| 2916 | 2918 | ||
| 2848 | 2851 | ||
| – | 1664 | 1626 | C=C stretching vinylidene group |
| – | – | 1596 | |
| 1555 | – | – | C=C stretching of polypyrrole ring |
| 1454 | 1454 | 1452 | |
| 1165 | 1162 | 1155 | C–H in plane deformation of aromatic ring |
| 1123 | 1125 | 1125 | |
| 790 | 770 | – | C–C out of plane ring deformation or C–H rocking |
| 668 | 668 | – | |
| 1287 | 1330 | 1323 | =C–N planar vibration |
| 1032 | 1035 | 1025 | S=O of DBSA |
| 1009 | 1008 | 1004 | Benzoid ring of DBSA |
| – | 1483 | 1482 | Ring vibration of NVC moiety |
| – | 749 | 743 | >CH2 rocking vibration due to tail to tail addition |
| – | 723 | 718 | Ring deformation of substituted aromatic structure |