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Hydrophobic associated polymer containing sulfonating calixarene and preparation method thereof

A technology of sulfonated calixarene and hydrophobic association, which is applied in the preparation of organic compounds, sulfonate preparation, chemical instruments and methods, etc., and achieves the effect of simple method, reliable principle and good repeatability

Active Publication Date: 2017-12-12
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The relevant properties and technology of hydrophobic association polymers used as oil displacement agents have become increasingly mature, but there are few reports on hydrophobic association polymers containing sulfonated calixarene used as oil displacement agents

Method used

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  • Hydrophobic associated polymer containing sulfonating calixarene and preparation method thereof
  • Hydrophobic associated polymer containing sulfonating calixarene and preparation method thereof
  • Hydrophobic associated polymer containing sulfonating calixarene and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The preparation method of the hydrophobic association polymer containing sulfonated calixarene comprises the following steps in sequence:

[0048] (1) Synthesis of p-tert-butyl[4]arene: Add 60g of p-tert-butylphenol, 37.5mL of formaldehyde solution and 0.6g of sodium hydroxide into a 1000mL three-neck flask, react at about 110°C for 2h, and cool to room temperature , add 300mL of diphenyl ether, under nitrogen atmosphere, raise the temperature to about 170°C and react for 10min, then install a reflux condenser, condense and reflux for 2h, add ethyl acetate to precipitate the crude product after cooling to room temperature, use ethyl acetate and The crude product was washed with glacial acetic acid followed by deionized water to afford p-tert-butyl[4]arene in 56.8% yield.

[0049] (2) Synthesis of calix[4]arene: add 20.25g p-tert-butyl[4]arene, 13.5g phenol and 21g anhydrous aluminum chloride successively in a 250mL three-necked flask, then add 150mL anhydrous toluene, i...

Embodiment 2

[0054] The preparation method of the hydrophobic association polymer containing sulfonated calixarene comprises the following steps in sequence:

[0055] Steps (1)~(4) are identical with embodiment 1;

[0056] (5) Preparation of hydrophobic association polymer containing sulfonated calixarene: add 15g of acrylamide (AM), 4g of acrylic acid (AA), 0.02g of vinyl modified sulfonated calix[4]arene, and 0.2g of flexible hydrophobic monomer In a 100mL beaker, add deionized water and stir to dissolve, adjust the pH value to 6, prepare the total monomer concentration of 20% with deionized water, and add 0.05g of azobisisobutylamine as an initiator after passing nitrogen for 30min. Then, the temperature was raised to 50° C. and reacted for 6 hours to obtain a transparent polymer gel, which was dried and pulverized to obtain the hydrophobic association polymer containing sulfonated calixarene of the present invention.

Embodiment 3

[0058] The preparation method of the hydrophobic association polymer containing sulfonated calixarene comprises the following steps in sequence:

[0059] Steps (1)~(4) are identical with embodiment 1;

[0060] (5) Preparation of hydrophobic association polymer containing sulfonated calixarene: add 17g acrylamide (AM), 5g acrylic acid (AA), 0.5g vinyl modified sulfonated calix[4]arene, and 0.3g flexible hydrophobic monomer In a 100mL beaker, add deionized water and stir to dissolve, adjust the pH value to 8, prepare the total monomer concentration of 20% with deionized water, and add 0.004g 2-hydroxy-4-(2-hydroxyethyl Oxygen)-2-methylpropiophenone is used as a photoinitiator, and the reaction system is placed under ultraviolet light, and reacted for 4h to obtain a transparent polymer gel. After drying and crushing, the sulfonated Calixarene Hydrophobically Associating Polymers.

[0061] 2. Performance Analysis of Hydrophobic Association Polymers Containing Sulfonated Calixare...

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Abstract

The invention discloses a hydrophobic associated polymer containing sulfonating calixarene. The hydrophobic associated polymer is prepared from reaction monomer acrylamide, acrylic acid, vinyl modified sulfonated calixarene and vinyl modified fatty alcohol-polyoxyethylene ether through polymerization reaction. A preparation method comprises the steps that p-tert-butylphenol and formaldehyde are firstly used for preparing p-tert-butyl calix [4] arene, then p-tert-butyl is removed in anhydrous methylbenzene to obtain calix [4] arene, concentrated sulfuric acid is utilized to sulfonate calix [4] arene, and sulfonated calix [4] arene is obtained, methyl acryloyl chloride is utilized to introduce double bonds to the sulfonated calix [4] arene through vinylation, and the vinyl modified sulfonated calix [4] arene performs polymerization reaction with acrylamide, acrylic acid and vinyl modified fatty alcohol-polyoxyethylene ether to prepare the hydrophobic associated polymer containing the sulfonated calix [4] arene. The heat and salt resistance, viscosifying capacity and shearing resistance of the hydrophobic associated polymer containing the sulfonated calix [4] arene are remarkably improved, and the hydrophobic associated polymer has a wide application prospect.

Description

technical field [0001] The invention belongs to the fields of new materials and oil field chemistry, and in particular relates to a hydrophobic association polymer containing sulfonated calixarene and a preparation method thereof. Background technique [0002] As a non-renewable resource, petroleum is also an important energy chemical material. Under the condition that my country's dependence on foreign oil is greater than 50%, and there are only a few newly discovered large oil fields, making full use of existing oil reservoir resources and redeveloping the remaining 65% of oil resources after water injection development is the key to increasing crude oil production. a feasible solution. Faced with the phenomenon that my country's oilfields are in the middle and late stage of production, the injected water is fingering along the high permeability layer, flowing around the high oil content area, a large amount of crude oil is not swept, and the recovery degree of water flood...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/56C08F220/06C08F220/38C07C303/32C07C309/43
CPCC07C37/20C07C37/50C07C303/32C08F283/065C07C309/43C07C39/17C08F220/382
Inventor 杜代军蒲万芬刘锐陈亚飞
Owner SOUTHWEST PETROLEUM UNIV
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