Nucleophilic Addition of Reactive Dyes on Amidoximated Acrylic Fabrics

Table 3

FT-IR characteristic absorption peaks of modified acrylic fibers, RO16, and modified acrylic fabrics dyed with RO16.

Peak assignment	Wavenumber (cm^−1)
	Modified acrylic fibers	RO16	Modified acrylic fibers dyed with RO16
N–O stretching, amidoxime	947	—	968
C=N stretching, amidoxime	1594	—	1596
OH and NH2 stretching, amidoxime	3150–3550, broad	—	Present with more intensity
CN stretching, nitrile	2243	—	2243
S=O stretching, sulfonic group	—	1049, 1136, 1288	Present overlapped with less intensity at 1238
Para-disubstituted benzene	—	836	Present with less intensity at 828