A polyalphaolefin compound with polar ester branched chain and preparation method thereof
A technology of compound and α-olefin, which is applied in the field of poly-α-olefin compound and its preparation, can solve the problems of poor solubility of additives, etc., and achieve the effect of improving anti-wear performance and enhancing polarity
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Embodiment 1
[0040] In a 250mL three-necked flask equipped with a stirrer, condenser and oil-water separator, add 0.62mol acrylic acid, 0.25mol 1,6-hexanediol, 0.745g (0.004mol) p-toluenesulfonic acid catalyst, 1.85g (0.017mol ) hydroquinone inhibitor and 59.4g (68.2mL, 0.64mol) toluene, react at 120°C for 5h, distill under reduced pressure to remove unreacted acrylic acid and residual water, stop heating, pour the reaction mixture in the flask into a beaker , neutralized and washed with 5% NaOH aqueous solution to remove hydroquinone, and then washed with water until neutral to obtain alkenyl ester.
[0041] Add the obtained alkenyl ester into the 1-decene polymerization reaction system, add the catalyst and heat at 30°C for 8h
[0042] Polymerization is carried out to obtain polyalphaolefin with polar ester branched chain, as shown below; in this step, the catalyst is AlCl 3 .
[0043]
[0044] Embodiment 1 Structural formula
Embodiment 2
[0046] In a 250mL three-necked flask with a stirrer, condenser and oil-water separator, add 0.40mol 9-decenoic acid, 0.50mol butanol, 0.42g (0.002mol) p-toluenesulfonic acid catalyst, 1.05g (0.009mol) Hydroquinone inhibitor, 42.06g (48.3mL, 0.46mol) toluene, react at 140°C for 12h, distill off unreacted butanol and residual water under reduced pressure, stop heating, pour the reaction mixture in the flask into a beaker , neutralized and washed with 5% NaOH aqueous solution to remove hydroquinone, and then washed with water until neutral to obtain alkenyl ester.
[0047] Add the obtained alkenyl ester to the 1-dodecene polymerization reaction system, add a catalyst and heat at 70°C for 4 hours to carry out the polymerization reaction to obtain a polyalphaolefin with polar ester branched chains, as shown below; in this step , the catalyst is Ziegler-Natta.
[0048]
[0049] Embodiment 2 Structural formula
Embodiment 3
[0051] In a 250mL three-necked flask equipped with a stirrer, a condenser and an oil-water separator, add 0.60mol propylene alcohol, 0.50mol lauric acid, 1.35g (0.008mol) p-toluenesulfonic acid catalyst, 0.68g (0.006mol) terephthalic acid Phenol inhibitor and 40.5g (46.6mL, 0.44mol) toluene, reacted at 160°C for 4h, distilled off unreacted propylene alcohol and residual water under reduced pressure, stopped heating, poured the reaction mixture in the flask into a beaker, and used 5 % NaOH aqueous solution to neutralize and wash to remove hydroquinone, and then wash with water until neutral to obtain alkenyl ester.
[0052] Add the obtained alkenyl ester into the 1-decene polymerization reaction system, add a catalyst and heat at 100°C for 4 hours to carry out the polymerization reaction, and obtain a polyalphaolefin with polar ester branched chains, as shown below; in this step, the catalyst for metallocenes.
[0053]
[0054] Embodiment 3 Structural formula
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