Table 4 Proton NMR chemical shift values in ppm.
From: Synthesis of non-phosphorylated epoxidised corn oil as a novel green flame retardant thermoset resin
|  | 1°-Alkyl | 2°-Alkyl | 3°-Alkyl | Allylic | Carbonyl | Oxirane | Hydroxyl | Vinyllic | Aromatic |
|---|---|---|---|---|---|---|---|---|---|
Corn Oil | δ 0.91 | δ 1.274 | δ 1.629 | δ 2.06 | δ 2.33 |  | δ 4.172 | δ 5.285 |  |
|  |  | δ 1.322 |  |  | δ 2.789 |  | δ 4.305 | δ 5.362 |  |
ECO | δ 0.887 | δ 1.262 | δ 1.613 | δ 2.087 | δ 2.323 | δ 3.399 | δ 4.162 | δ 5.393 |  |
|  |  | δ 1.321 |  | δ 2.187 |  |  | δ 4.291 |  |  |
|  |  | δ 1.479 |  |  |  |  |  |  |  |
Epoxy Resin |  |  | δ 1.662 |  | δ 2.774 | δ 3.368 |  |  | δ 6.859 |
|  |  |  |  |  | δ 2.921 |  |  |  |  |
Vinyl Ester |  | δ 1.304 | δ 1.672 | δ 2.001 | δ 2.202 | δ 3.321 | δ 4.063 | δ 5.276 | δ 6.19 |
|  |  |  |  |  |  |  | δ 4.385 | δ 5.303 | δ 6.73 |
|  |  |  |  |  |  |  |  | δ 5.647 | δ 6.868 |
|  |  |  |  |  |  |  |  | δ 5.817 | δ 7.171 |
