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Alkenyl-branched monomers and preparation method thereof

A branched monomer and alkenyl technology, applied in the field of alkenyl branched monomer and its preparation, can solve the problems of maintaining drilling fluid performance under high temperature and high salt conditions, and achieve good thickening ability and strong flocculation ability. , the effect of a wide range of application prospects

Active Publication Date: 2015-01-28
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing drilling fluid treatment agent can not meet the needs of maintaining drilling fluid performance under high temperature and high salt conditions and provide a kind of alkenyl branched monomer

Method used

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  • Alkenyl-branched monomers and preparation method thereof
  • Alkenyl-branched monomers and preparation method thereof
  • Alkenyl-branched monomers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) According to the ratio of ethanolamine to methyl acrylate molar ratio of 1:1, the methyl acrylate, ethanolamine and methanol added in the reactor, at room temperature and through N 2 After stirring for 30 minutes under normal conditions, the temperature was raised to 40°C for 4 hours, and then distilled under reduced pressure to remove methanol to obtain intermediate A;

[0036] (2) According to the molar ratio of intermediate A and butanediamine as 1:1, add intermediate A and methanol into the reaction kettle, add butanediamine dropwise under stirring at 25°C, and then react at this temperature 24h, then distilled under reduced pressure to remove methyl alcohol, obtain intermediate B;

[0037] (3) Intermediate B and succinic acid were reacted at 110°C for 6 hours at a molar ratio of 1:1 to obtain intermediate C;

[0038] (4) According to the ratio of the molar ratio of intermediate C to dichloromethane, triethylamine and acryloyl chloride of 1:18:1.0:1.0, intermed...

Embodiment 2

[0040] (1) According to the ratio of ethanolamine to methyl acrylate molar ratio of 1:1.1, the methyl acrylate, ethanolamine and methanol added in the reaction kettle, at room temperature and through N 2 After stirring for 40 minutes under normal conditions, the temperature was raised to 35°C for 6 hours, and then distilled under reduced pressure to remove methanol to obtain intermediate A;

[0041] (2) According to the molar ratio of intermediate A and ethylenediamine of 1:1.05, add intermediate A and methanol into the reaction kettle, add ethylenediamine dropwise under stirring at 25°C, and then react at this temperature 28h, then distilled under reduced pressure to remove methyl alcohol, obtain intermediate B;

[0042] (3) React intermediate B and sebacic acid at a molar ratio of 1:1.05 at 160°C for 2 hours to obtain intermediate C;

[0043] (4) According to the molar ratio of intermediate C to dichloromethane, triethylamine and acryloyl chloride in the ratio of 1:22:1.1:1.0...

Embodiment 3

[0045] (1) According to the ratio of ethanolamine to methyl acrylate molar ratio of 1:1.02, the methyl acrylate, ethanolamine and methyl alcohol added in the reaction kettle, at room temperature and through N 2 After stirring for 30 minutes, the temperature was raised to 35°C for 4 hours, and then the methanol was distilled under reduced pressure to obtain intermediate A.

[0046] (2) According to the molar ratio of intermediate A and hexamethylenediamine of 1:1.025, intermediate A and an appropriate amount of methanol are added to the reaction kettle, and hexamethylenediamine is added dropwise under stirring at 25°C, and then Under the reaction of 24h, and then distilled under reduced pressure to remove methanol, intermediate B was obtained.

[0047] (3) Intermediate B was reacted with adipic acid at a molar ratio of 1:1-1.025 at 130° C. for 4 hours to obtain intermediate C.

[0048] (4) According to the molar ratio of intermediate C to dichloroethane, tri-n-propylamine and ...

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Abstract

The invention discloses alkenyl-branched monomers and a preparation method thereof, and belongs to the field of organic synthetic chemistry. The monomers are prepared by the steps of reacting a hydroxyethyl-containing branched polyamide intermediate and acryloyl chloride at a room temperature in presence of an organic solvent and an acid-trapping agent; standing; separating an organic phase; washing for a plurality of times by neutralizing with a saturated sodium bicarbonate solution; drying by using anhydrous sodium sulfate; steaming the organic solvent out to obtain a crude product; and further purifying the crude product to obtain a polymer grade product. The monomers can be used as co-polymerization monomers to prepare hyperbranched polymers used for oilfields and to prepare branched water-soluble polymers for other applications and emulsifiers for emulsion polymerization.

Description

technical field [0001] The invention relates to an alkenyl branched monomer and a preparation method thereof, belonging to the technical field of organic synthesis and water-soluble polymer material synthesis, more precisely, a branched macromonomer containing double bonds and its preparation method. Preparation. Background technique [0002] With the development of oil drilling to deep and complex formations, higher and higher requirements are put forward for drilling fluid, and the key to ensure the performance of drilling fluid is drilling fluid treatment agent. In order to continuously improve the level of drilling fluid treatment agent, develop treatment The idea of ​​synthetic agent, the molecular design of drilling fluid treatment agent has gradually been paid attention to, and the formation of molecular design concept provides an effective way to improve the performance of drilling fluid treatment agent. However, under high-temperature and high-salt conditions, espe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C237/10C07C231/12C09K8/035C09K8/588C09K8/68C08F20/36C08F2/30C02F1/56
Inventor 王中华
Owner CHINA PETROCHEMICAL CORP
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