Research Article
Thermal Degradation Studies of Terpolymer Derived from 2-Aminothiophenol, Hexamethylenediamine, and Formaldehyde
Table 3
IR frequencies of 2-ATPHMDAF-I terpolymer.
| | Observed wavenumber (cm−1) |
Assignments |
| | 3434 b, st | >NH stretching (sec. amine) | | 3024 m | >C–H stretching (aromatics) | | 2600 w | –SH (phenolic thiol) | | 1650–1700 sh | >NH bending (sec. amine) | | 1482 m | >C=C< (aromatic ring) | | 1236 m | C–N stretching (aromatic amine) | | 807 w | Tetrasubstitution in benzene skeleton | | 1013 m | | | Methylene bridge | | 1467 m | –CH2 bending
| | 1345 b, m | –CH2 wagging | | 729 m | –CH2 rocking |
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b: broad; sh: sharp; st: strong; m: medium; w: weak.
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