Free radical polymerization functional monomer and synthesis method thereof

A technology of functional monomer and synthesis method, which is applied in the field of tertiary oil recovery binary composite oil displacement agent and tertiary oil recovery, can solve problems such as failure to reach, and achieve the effect of improving temperature resistance

Active Publication Date: 2012-03-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above requirements cannot be met in high salinity water quality.

Method used

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  • Free radical polymerization functional monomer and synthesis method thereof
  • Free radical polymerization functional monomer and synthesis method thereof
  • Free radical polymerization functional monomer and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0071] Example 1-6 [Synthesis of free radical polymerization functional monomer]

Embodiment 1

[0073] According to the first technical scheme of free radical polymerization of functional monomers, 0.1 mol of ethylenediamine and 0.1 mol of lauric acid are mixed, heated to 130° C., and reacted for 2 to 6 hours to obtain an intermediate. To the obtained intermediate, add 150 ml of organic solvent dichloromethane, add 0.1 mol of maleic anhydride, and react under reflux at 80°C to 110°C for 4 to 8 hours, then distill off the solvent and dry to obtain a free radical polymerization functional compound. The monomer product is denoted as monomer 1.

[0074] Structural testing see figure 1 , 2848.3cm -1 、2916.8cm -1 Symmetrical and asymmetrical stretching vibration absorption peaks for methyl and methylene, 1377.5cm -1 、1406.0cm -1 、1467.5cm -1 It is the in-plane bending vibration peak of methyl and methylene; 1709.3cm -1 It is the stretching vibration peak of C=O; 1642.5cm -1 、1588.5cm -1 It is the stretching vibration peak of C=C double bond; 3073.1cm -1 These are the ...

Embodiment 2

[0076] According to the first technical scheme of free radical polymerization of functional monomers, 0.1 mol of hexamethylenediamine and 0.1 mol of lauric acid are mixed, heated to 130° C., and reacted for 2 to 6 hours to obtain an intermediate. To the obtained intermediate, add 150 ml of organic solvent dichloromethane, add 0.1 mol of maleic anhydride, and react under reflux at 80°C to 110°C for 4 to 8 hours, then distill off the solvent and dry to obtain a free radical polymerization functional compound. The monomer product is denoted as monomer 2.

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Abstract

The invention discloses a free radical polymerization functional monomer, with a molecular structural formula shown as a formula (11), wherein n is 2 or 6, and R is C11-C24 saturated alkyl or unsaturated alkyl. The invention also discloses a method for synthesizing a long chain branch polymer used for oil displacement by utilizing the monomer and a structural formula of the long chain branch polymer used for the oil displacement as well as a method for preparing a binary complex oil displacement agent by utilizing the long chain branch polymer used for the oil displacement. Under the conditions of high hypersalinity and high temperature, viscosity of single polymer oil displacement agent is greatly improved, thus being beneficial to application in tertiary oil recovery.

Description

technical field [0001] The invention relates to the field of tertiary oil recovery, in particular to the synthesis of free radical polymerization monomers and long-chain branched polymers, and can be applied in the fields of binary composite oil displacement agents for tertiary oil recovery and the like. Background technique [0002] Free radical polymerization refers to the reaction of vinyl monomers containing carbon-carbon double bonds to form polymers through free radical chain addition polymerization. Because many monomers can undergo free radical polymerization, suspension and emulsion polymerization can be carried out with water as the medium, the polymerization process is easy to operate, and its reproducibility is good, so it has become an important technology for industrial production of polymer products since the 1950s. [0003] General free radical polymerization synthesis mainly includes bulk method, aqueous solution method, emulsion method and suspension method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C233/38C07C231/02C08F222/38C09K8/588
Inventor 李勇赵方园刘晓光魏小林祝纶宇林蔚然计文希刘希伊卓杜凯
Owner CHINA PETROLEUM & CHEM CORP
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