Composite initiator of hydrophobic associated polymer and preparation method of hydrophobic associated polymer

A composite initiator and hydrophobic association technology, applied in the field of composite initiators, can solve problems such as increasing manufacturing costs and increasing electromagnetic radiation production processes

Active Publication Date: 2015-06-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of evaluation methods and specific research on the residual acrylamide content of polymers, GB12005.3-1989, GB12005.4-1989 and GB12005.5-1989 provide detection methods for residual acrylamide in polyacrylamide; patent CN101649022A introduces a A preparation method for reducing the residual monomer content of anionic polyacrylamide, the core content of which is to optimize the production process and synthesize AM/AMPS/AA copolymers with a residual monomer content of less than 0.05%; patent

Method used

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  • Composite initiator of hydrophobic associated polymer and preparation method of hydrophobic associated polymer
  • Composite initiator of hydrophobic associated polymer and preparation method of hydrophobic associated polymer
  • Composite initiator of hydrophobic associated polymer and preparation method of hydrophobic associated polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] This composite initiator prepares the method for hydrophobic association polymer to carry out as follows:

[0110] a. In the state of magnetic stirring, according to deionized water: sodium lauryl sulfate: acrylamide = 100:1:32 parts by weight and acrylamide: disodium edetate: sodium formate: AMPS‐Na: DiC8AM = 100:0.1:0.001:20:1 parts by weight, add disodium edetate, sodium formate, sodium lauryl sulfate, acrylamide, AMPS‐Na, DiC8AM into deionized water in sequence, and stir well , and then placed in a constant temperature water bath at 10°C;

[0111] B. feed high-purity nitrogen into the mixed solution of a step for 60min, then add a composite initiator to polymerize for 4h to obtain a hydrophobically associated polymer colloid; the composite initiator is made from the following raw materials in proportions by weight:

[0112]

[0113] c. Coarsely crush the hydrophobically associated polymer colloid in step b, add 2.0% sodium hydroxide of the weight of the hydropho...

Embodiment 2

[0115] This composite initiator prepares the method for hydrophobic association polymer to carry out as follows:

[0116] a. In the state of magnetic stirring, according to deionized water: sodium lauryl sulfate: acrylamide = 100: 5: 22 parts by weight and acrylamide: disodium edetate: sodium formate: AMPS-Na: DiC8AM = 100: 0.01: 0.01: 5: 10 parts by weight, sequentially add disodium edetate, sodium formate, sodium lauryl sulfate, acrylamide, AMPS-Na, DiC8AM into deionized water, and stir well , and then placed in a constant temperature water bath at 20°C;

[0117] B. feed high-purity nitrogen into the mixed solution of step a for 30min, then add composite initiator to polymerize for 8h to obtain hydrophobic association polymer colloid; described composite initiator is made from the raw materials of following weight portion proportioning:

[0118]

[0119] c. After coarsely crushing the hydrophobically associated polymer colloid in step b, add 3.5% of the weight of the hyd...

Embodiment 3

[0121] This composite initiator prepares the method for hydrophobic association polymer to carry out as follows:

[0122]a. In the state of magnetic stirring, according to deionized water: sodium lauryl sulfate: acrylamide = 100: 2: 25 parts by weight and acrylamide: disodium edetate: sodium formate: AMPS-Na: DiC8AM = 100:0.05:0.003:15:5 parts by weight, sequentially add disodium edetate, sodium formate, sodium lauryl sulfate, acrylamide, AMPS-Na, DiC8AM into deionized water, and stir well , and then placed in a constant temperature water bath at 15°C;

[0123] B. feed high-purity nitrogen into the mixed solution of a step for 45min, then add composite initiator to polymerize for 6h, to obtain hydrophobic association polymer colloid; described composite initiator is made from the raw materials of following weight portion proportioning:

[0124]

[0125] c. Coarsely crush the hydrophobically associated polymer colloid in step b, add 3.0% of the weight of the hydrophobically...

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Abstract

The invention provides a composite initiator of a hydrophobic associated polymer and a preparation method of the hydrophobic associated polymer. The composite initiator is prepared from the following raw materials in parts by weight: 1-10 parts of potassium persulfate, 1-10 parts of ammonium persulfate, 0.5-5 parts of dibenzoyl peroxide, 1-10 parts of sodium hydrogen sulfite, 1-10 parts of sodium sulfite, 0.1-1 part of triethanolamine, 0.5-5 parts of urea, 0.5-5 parts of thiourea, 0.05-0.5 part of azodiisobutyronitrile and 0.05-0.5 part of azobis(isobutylamidine hydrochloride). The method comprises the following steps: a sequentially adding disodium ethylenediamine tetraacetate, sodium formate, lauryl sodium sulfate, acrylamide, AMPS-Na and DiC8AM to deionized water under a magnetic stirring condition, and fully stirring evenly; b introducing high-purity nitrogen into a mixed solution obtained from the step a, adding the composite initiator, and polymerizing to obtain hydrophobic associated polymer gel; and c coarsely crushing the hydrophobic associated polymer gel obtained from the step b, adding sodium hydroxide, hydrolyzing, drying in a blast drying oven, drying and crushing to obtain the product.

Description

Technical field: [0001] The invention belongs to the field of synthesizing hydrophobic association polymers by aqueous solution polymerization, in particular to a composite initiator capable of synthesizing hydrophobic association polymers with high molecular weight and low residual AM content. Background technique: [0002] Hydrophobically Associating Water-Soluble Polymers (Hydrophobically Associating Water-Soluble Polymers, or Hydrophobically Associating Water-Soluble Polymers) refers to a class of water-soluble polymers containing a small amount of hydrophobic groups on the hydrophilic macromolecular chain of the polymer. The group content is generally lower than 5% mol. In aqueous solution, the hydrophobic groups aggregate due to the hydrophobic effect, causing macromolecular chains to produce intramolecular and intermolecular associations. The intramolecular association and intermolecular association are related to the concentration of the hydrophobic association poly...

Claims

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Application Information

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IPC IPC(8): C08F4/40C08F4/04C08F120/56C08F2/26C08F8/12
Inventor 曹绪龙郭拥军刘坤宋新旺韩玉贵祝仰文李华兵何冬月窦立霞冯茹森李彬
Owner CHINA PETROLEUM & CHEM CORP
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