Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics

Table 7

The main wavelengths in the FTIR functional groups of LA and MEOA.

Wavelength of LA^a	Wavelength of MEOA^b	Functional group
3009	3009	C=C bending vibration (aliphatic)
2927, 2855	2927, 2856	C–H stretching vibration (aliphatic)
1719	1711	C=O stretching vibration (carboxylic acid)
1454	1454	C–H scissoring and bending for methylene group
1284	1284	C–O stretching asymmetric (carboxylic acid)
937	934	C–H bending vibration (alkene)
—	820	C–O–C oxirane ring
722	723	C–H group vibration (aliphatic)

Notes: Linoleic acid (a); 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (b).