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A kind of vinyl monomer and polymer and its preparation method and application

A technology of ethylene and polymers, applied in chemical instruments and methods, drilling compositions, organic chemistry, etc., can solve the problems that the temperature and salt resistance of acrylamide copolymers are difficult to improve, so as to improve the comprehensive performance and good The effect of temperature resistance and salt resistance

Active Publication Date: 2020-02-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical defect that the heat resistance and salt resistance of the existing acrylamide copolymers are difficult to improve, the present invention provides a new vinyl monomer and polymer as well as its preparation method and application

Method used

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  • A kind of vinyl monomer and polymer and its preparation method and application
  • A kind of vinyl monomer and polymer and its preparation method and application
  • A kind of vinyl monomer and polymer and its preparation method and application

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preparation example Construction

[0035] The present invention also provides a preparation method of a vinyl monomer, wherein the vinyl monomer has a structure shown in formula (1):

[0036]

[0037] Among them, n is 1 or 2, R 1 and R 2 each independently being H or a C1-C20 alkane group,

[0038] When R 1 and R 2 When both are H, the method comprises: in the presence of an alkali and / or an alkali metal and a solvent, performing an addition reaction of acetylene with an α-aminolactam and / or a salt of an α-aminolactam;

[0039] When R 1 and R 2When not all are H, the method comprises: under the conditions of the presence of alkali and / or alkali metal and solvent, acetylene is added to α-aminolactam and / or the salt of α-aminolactam, and then the obtained The mixture obtained by the above addition reaction is subjected to an alkylation reaction with an alkylating agent of C1-C20; or, the salt of a-aminolactam and / or a-aminolactam is carried out with an alkylating agent of C1-C20 Alkylation reaction, and...

Embodiment approach

[0049] According to a preferred embodiment of the present invention, the weight ratio of the total amount of α-aminolactam and α-aminolactam salt to the total amount of alkali and alkali metal is 1:1-5, more preferably 1: 1-1.2.

[0050] In the present invention, the alkylating agent is not particularly limited, and may be any alkylating agent known in the art, preferably the alkylating agent is selected from C1-C20 halogenated hydrocarbons, sulfuric acid esters, aldehydes and at least one of acid, preferably said halogenated hydrocarbon is a chlorinated alkane of C1-C6, preferably said sulfuric acid ester is dialkyl sulfate, preferably said aldehyde is formaldehyde and / or acetaldehyde, preferably said The acid is formic acid and / or acetic acid.

[0051] The present invention has no special restrictions on the conditions of the alkylation reaction. Preferably, the conditions of the alkylation reaction include: a temperature of -78°C to 150°C, a pressure of 0-0.5MPa, and a tim...

Embodiment 1

[0096] Dissolve 11.4g of α-aminovalerolactam in anhydrous DMF, then add 15g of anhydrous potassium carbonate, and slowly (7.5g / h) add 30g of methyl iodide under ice-bath conditions, rise to room temperature and react for 24h, then treat The reaction product is washed with water, extracted and dried to remove the solvent to obtain an intermediate product;

[0097] Dissolve the intermediate product in 50 mL of anhydrous N-methylpyrrolidone, then add 2.4 g of sodium, react at 125 ° C for 30 min, transfer to an autoclave, and feed acetylene / nitrogen gas mixture at 170 ° C (volume ratio of 1:1) to 0.5MPa, reacted for 10 hours to obtain the reaction product, and separated by vacuum distillation to obtain the product.

[0098] use 1 H-NMR analyzes the structure of this product, obtains figure 1 Spectrum shown. As can be seen from the spectrogram, the chemical shifts are 7.3, 6.1 and 4.8, which are peaks of olefinic double bonds, and 2.6, which are methyl peaks, consistent with the...

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Abstract

The invention relates to the field of petrochemical industry, particularly to an ethylene monomer, a polymer, preparation methods of the ethylene monomer and the polymer, and applications of the polymer. The ethylene monomer has a structure represented by a formula (1), wherein n is 1 or 2, R1 and R2 are respectively and independently H or a C1-C20 chain alkane group. The ethylene monomer preparation method comprises: carrying out an addition reaction on acetylene and alpha-amino lactam and / or the salt of alpha-amino lactam when R1 and R2 are both H; and when R1 and R2 are not both H, carryingout an addition reaction on acetylene and alpha-amino lactam and / or the salt of alpha-amino lactam, and carrying out an alkylation reaction on the obtained material and a C1-C20 alkylating reagent, or carrying out an alkylation reaction on an alkylation reaction on and a C1-C20 alkylating reagent , and then carrying out an addition reaction on the obtained material and acetylene. According to thepresent invention, the polymer has good temperature resistance and good salt resistance. The formula (1) is defined in the specification.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a vinyl monomer and polymer, a preparation method and application thereof. Background technique [0002] Acrylamide polymer (PAM) is a multi-purpose water-soluble polymer, suitable for dyeing, papermaking, food, construction, metallurgy, mineral processing, coal powder, oil field, aquatic product processing and fermentation and other industries, and has a wide range of industries Applications. In oilfield exploitation, acrylamide copolymer has excellent performance as an oil recovery additive in tertiary oil recovery, and has played an important role in stabilizing and increasing oilfield production in my country. [0003] At this stage, my country's petroleum industry is facing the problem of high-temperature and high-salt oil reservoir exploitation. Based on the current severe energy environment, how to exploit oil reservoirs under harsh geological environment has become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D211/76C07D223/12C08F220/56C08F226/06C08F222/38C08F226/10C08F220/58C09K8/588
CPCC07D211/76C07D223/12C08F220/56C09K8/588C08F220/585C08F226/06
Inventor 计文希祝桂香张龙贵许宁张伟韩翎殷建军
Owner CHINA PETROLEUM & CHEM CORP
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