Computational, Kinetics, and Corrosion Protection Aspects of Electrodeposited Poly(Salicylic Acid) Coatings as a Corrosion Inhibitor for Mild Steel

Table 4

Infrared absorption bands of SA and PSA.

Assignments	Wavenumber (cm ^−1)
	SA	PSA
CH out-of-plane bending for 1, 2 di-substituted benzene ring.	580^s	680^s
	768^w	763^m
CH out-of-plane bending for 1, 2, and 4 tri-substituted benzene ring.	869^m	886^s
Stretching vibration for C-O group.	—	1024^w
Stretching for incorporation in the polymer sulfate group.	1218^b	1193^b
Stretching vibration of C=C in benzene ring	1456^s	1454^m
	1656^b	1660^s
	2600^w	2597^b
	2876^w	2856^s
Stretching vibration for CH aromatic	—	2999^w
	—	3233^b
Stretching vibration intermolecular hydrogen of solvated OH group or end group OH of polymeric chain.	3496^b	3437^w

(where s: strong, w: weak, b: broad, and m: medium).