Analysing the Temperature Effect on the Competitiveness of the Amine Addition versus the Amidation Reaction in the Epoxidized Oil/Amine System by MCR-ALS of FTIR Data

Table 1

Assignment of the absorption bands in the FTIR-ATR spectra (see Figure 1).

Origin	Wavenumber (cm^−1)	Assignment
C–O–	1276	Epoxy and oxirane ring
C–N	1310	Aromatic tertiary amine, CN stretching
C–N	1364	Aromatic tertiary amine, CN stretching
N–H	1500–1600	Secondary amine, NH bending
N–H	1624	Primary amine, NH bending
C=O	1650–1700	Amide, CO stretching
C=O	1740	Ester, CO stretching
CH2–	2800–3050	Methylene, CH stretching
N–H	3370	Primary amine, NH stretching
N–H	3460	Primary amine, NH stretching
O–H	3500–3650	Hydroxy group, OH stretching