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Polyalphaolefin compound with polar ester group branched chain and preparation method thereof

A compound and alpha olefin technology, applied in the field of polyalpha olefin compounds and their preparation, can solve the problems of poor solubility of additives, and achieve the effects of improving anti-wear performance and enhancing polarity

Active Publication Date: 2019-10-15
SHENZHEN EUBO NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a polyalphaolefin compound with polar ester branched chains and a preparation method thereof, which is used to solve the technical defect of polyalphaolefin in the prior art that the solubility of additives is poor

Method used

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  • Polyalphaolefin compound with polar ester group branched chain and preparation method thereof
  • Polyalphaolefin compound with polar ester group branched chain and preparation method thereof
  • Polyalphaolefin compound with polar ester group branched chain and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

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 to 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, condenser and 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, react at 160°C for 4h, distill off unreacted allyl alcohol and residual water under reduced pressure, stop heating, pour the reaction mixture in the flask into a beaker, and use 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 to 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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Abstract

The invention belongs to the field of lubricating oil research and development, and particularly relates to a polyalphaolefin compound with a polar ester group branched chain and a preparation methodthereof. The invention provides the polyalphaolefin compound with the polar ester group branched chain, and also provides the preparation method of any one of the compounds. According to the technicalscheme, the polyalphaolefin compound contains the polar ester group branched chain, so that the polarity of the compound is obviously enhanced; when the polyalphaolefin compound is mixed with an additive with larger polarity, the problem that the additive is precipitated due to the larger polarity is effectively solved; and furthermore, the abrasion resistance of polyalphaolefin base oil is effectively improved. The polyalphaolefin compound with the polar ester group branched chain and the preparation method thereof solve the technical defect of poor solubility of the polyalphaolefin to the additive in the prior art.

Description

technical field [0001] The invention belongs to the field of lubricating oil research and development, in particular to a polyalphaolefin compound with polar ester branched chains and a preparation method thereof. Background technique [0002] Polyalphaolefin is a kind of base oil obtained by polymerization of α-olefins under the action of a catalyst, and then hydrogenation. It has excellent performance and is widely used. Its advantages mainly include: high viscosity index, wide operating temperature range, oxidation stability Good stability, shear stability, thermal oxidation stability, low corrosion and low toxicity, etc. However, the low polar polyalphaolefin leads to poor friction performance and poor solubility of polar additives. [0003] In order to improve the anti-oxidation and anti-wear properties of lubricating oil, it is common practice to add additives such as antioxidants and extreme pressure anti-wear agents to the base oil. In the prior art, general additiv...

Claims

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Application Information

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IPC IPC(8): C07C67/347C07C69/78C07C69/587C07C69/50C10M105/34C10M105/36
CPCC07C67/347C07C69/78C07C69/587C07C69/50C10M105/34C10M105/36
Inventor 童蓉王虹李士成岳树伟胡秋波吴进忠
Owner SHENZHEN EUBO NEW MATERIAL TECH
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