Nucleophilic Addition of Reactive Dyes on Amidoximated Acrylic Fabrics

Table 4

FT-IR characteristic absorption peaks of modified acrylic fibers, RR84, and modified acrylic fabrics dyed with RR84.

Peak assignment	Wavenumber (cm^−1)
	Modified acrylic fibers	RR84	Modified acrylic fibers dyed with RR84
N–O stretching, amidoxime	947	—	926
C=N stretching, amidoxime	1594	—	1632 overlapped with C=C aromatic and C=O amide
OH and NH2 stretching, amidoxime	3150–3550, broad	—	Present with more intensity
CN stretching, nitrile	2243	—	2243
C=C aromatic, C=O amide	—	1585, 1626, 1662	Overlapped with C=N amidoxime with less intensity at 1632
C–Br stretching	—	831	Present with less intensity at 848