Table 1.
FTIR Assignments (in nm) of PAS and Its Nanocomposites (A and B)
Assignment | PAS | Nanocomposite-A | Nanocomposite-B |
---|---|---|---|
ν as (N-H) | 3490 | Overlapped with O-H stretching at 3352 | Overlapped with O-H stretching at 3344 |
ν s (N-H) | 3381 | ||
ν(O-H) in the layer/H2O | 3694 | 3352 | 3344 |
ν (C=O) in COOH | 1609 | 1609 | 1609 |
ν O-H ring stretching | 3020, 1283, 1163 | 1286 | 1285 |
ν (C-C) assym and sym: stretching of aromatic ring | 1519, 1433 | 1452 | 1449 |
ν aromatic (C-C-C) ring sym bending | 525 | 529 | 521 |