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. 2020 Jan 10;12(1):193. doi: 10.3390/polym12010193

Table 2.

FT-IR spectral data for 1–3.

Polyphosphate FT-IR (Wavenumber, cm–1)
P=O P-O-C C=C CH=N
1 1188 1222 1581 1631
2 1172 1242 1556 1643
3 1165 1242 1585 1643