Improvement of Physicochemical Characteristics of Monoepoxide Linoleic Acid Ring Opening for Biolubricant Base Oil

Table 7

The main signals present in ¹H NMR functional groups of MEOA and HYOOA.

δ (ppm) of MEOA^a	δ (ppm) of HYOOA^b	Assignment
0.86–0.88	0.82–0.84	–CH3
1.29–2.03	1.23–2.06	–CH2
2.29–2.33	2.26–2.33	–CH
2.92–3.12	—	–CH–O–CH–
—	3.62	–CHOH
—	4.06	–CHOCOR
5.38–5.49	5.31–5.40	–CH=CH–

Notes: monoepoxide linoleic acid (a); 9,12-Hydroxy-10,13-oleioxy-12,9-octadecanoic acid (b).