Preparation method and application of UV (Ultraviolet) photocatalysis-based unsaturated vegetable oil D-A (Diels-Alder) reaction product

[0038] Embodiment 1UV photocatalytic lycate D-A reaction product MEMAA compound

[0039] (1) Synthesis and separation and purification of methyl trophic acid: Add 87.2 g of tung oil (0.10 mol, tung oil is calculated as glyceryl citric acid ester (872)) into a 250 mL three-neck flask, install a condensing reflux device, and heat the constant temperature water bath to 70 °C Afterwards, add the NaOH / methanol solution (0.872g / 19.2g) that prepares, wherein methyl alcohol: tung oil=6:1 (mol / mol), methyl alcohol 0.6mol (19.2g); NaOH is 1% (0.872g) of tung oil quality ); turn on the magnetic stirring, and stop the reaction after reacting for about 1 hour; add an appropriate amount of phosphoric acid to neutralize, transfer the reaction solution to a separatory funnel while it is hot, let it stand, and separate the glycerin layer (lower layer); wash the upper layer of liquid with hot distilled water 3 to 4 times, remove the water phase in the lower layer, distill under reduced pressure...

[0052] Embodiment 2UV photocatalysis linoleic acid ester D-A reaction product

[0053] (1) Synthesis and separation and purification of methyl linolenate: Add 87.2g linseed oil (0.10mol, linseed oil is calculated as linolenic acid glyceride (872)) in a 250mL three-necked flask, install a condensing reflux device, and heat the constant temperature water bath to After 60°C, add the prepared KOH / methanol solution, wherein methanol: tung oil = 5:1 (mol / mol), methanol 0.50mol; KOH is 2% of the mass of linseed oil; turn on the magnetic stirring, and stop after about 80min of reaction Reaction; add an appropriate amount of phosphoric acid for neutralization, transfer the reaction solution to a separatory funnel while it is hot, let it stand, and separate the glycerin layer (lower layer); wash the upper layer of liquid with hot distilled water for 3 to 4 times, remove the lower layer of water phase, and remove Pressure distillation to remove methanol and most of the water, etc., and d...

[0056] Embodiment 3UV photocatalysis soybean oleic acid ester D-A reaction product

[0057](1) Synthesis and separation and purification of soybean oil ester: Add 87.2g soybean oil (0.10mol, soybean oil is calculated as linoleic acid glyceride 878) in a 250mL three-necked flask, install a condensing reflux device, and heat the constant temperature water bath to After 80°C, add the prepared KOH / methanol solution, wherein methanol: tung oil = 8:1 (mol / mol), methanol 0.8mol; KOH is 2% of the mass of soybean oil; turn on magnetic stirring, react for about 50 minutes, stop Reaction; add an appropriate amount of phosphoric acid for neutralization, transfer the reaction solution to a separatory funnel while it is hot, let it stand, and separate the glycerin layer (lower layer); wash the upper layer of liquid with hot distilled water for 3 to 4 times, remove the lower layer of water phase, and remove Pressure distillation to remove methanol and most of the water, etc., and dry with an...