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. 2023 Jul 6;9(7):e18067. doi: 10.1016/j.heliyon.2023.e18067

Table 3.

13C NMR spectral data of PPHF–I.

Compound Chemical Shift (δ) ppm
Aromatic ring (C1 – C6) Methylene –CH2 in terpolymer (C–N) group
PPHF–I p-Phenylenediamine
118.81, 112.36, 113.98, 119.17, 115.16,115.89
Phenyl hydrazine
129.41, 128.80, 119.37, 129.28, 129.98, 137.33		 40.58 145.23