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Method of synthesizing cation polyacrylamide water-in-water emulsion

A technology of polyacrylamide and synthesis method, applied in the field of synthesis of water-soluble polymers, can solve problems such as poor fluidity of polymer emulsions

Inactive Publication Date: 2007-08-15
CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The polymer emulsion synthesized by this method can exist stably, but the fluidity of the polymer emulsion is very poor

Method used

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  • Method of synthesizing cation polyacrylamide water-in-water emulsion

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Embodiment 1

[0021] Add 85g deionized water, 57g ammonium sulfate, 22g acrylamide, 11g methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 11g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stirring 800 rpm, nitrogen to remove the oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. After 2 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point 0.02 ml of 1 wt% V044 solution was added. 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2 g of ammonium sulfate for viscosity reduction, the reaction product was taken out to obtain a milk...

Embodiment 2

[0023] Add 85g deionized water, 57g ammonium sulfate, 22g acrylamide, 5g methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 17g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stirring 800 rev / min, nitrogen to remove in the system oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. Within 3 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point, 0.02ml of 1wt% V044 solution was added, 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2g of ammonium sulfate to lower the viscosity, take it out to obtain a milky white dispe...

Embodiment 3

[0025]Add 85g of deionized water, 57g of ammonium sulfate, 22g of acrylamide, 2g of methacryloxyethyltrimethylammonium chloride (concentration 80%) solution, 20g acryloyloxyethyltrimethylammonium chloride (concentration is 80%) solution, 45g stabilizer A, 0.02g EDTA; Constant temperature 35 ℃, stir 800 rpm, pass nitrogen to remove the oxygen. After passing nitrogen for about 15 minutes, 0.02 ml of 1 wt % V044 solution was added. After 2 hours, the polymerization started, and the viscosity of the system continued to increase within 30 minutes. Within 3.5 hours of the polymerization, the system gradually changed from transparent to milky white, and the viscosity gradually decreased. At this point, 0.02ml of 1wt% V044 solution was added, 0.04ml of 1wt% V044 solution was added in 4 hours, 0.08ml of 1wt% V044 solution was added in 8 hours, and the reaction continued for 24 hours. After adding 2g of ammonium sulfate to lower the viscosity, take it out to obtain a milky white dispe...

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Abstract

The invention discloses a synthesizing method of cationic polyacrylamide 'water-in-water' emulsion, which is characterized by the following: adopting inorganic solution as dielectric with specific viscosity number is 30-90ml / g low-molecular cationic polymer solution as stabilizer; copolymerizing free radical of cationic monomer with double bond and non-ion monomer to form the product with grain size less than 1um; fitting for disposing urban effluent, oil-field effluent and paper-making domain.

Description

technical field [0001] The invention relates to a synthesis method of a cationic polyacrylamide 'water-in-water' emulsion, which belongs to the synthesis of water-soluble polymers. Background technique [0002] Polyacrylamide-based water-soluble polymer materials are widely used in the fields of flocculation, thickening, drag reduction, bonding, and scale inhibition because of their good water solubility, excellent viscosity increasing, and efficient flocculation performance. Among them, cationic polyacrylamide water-soluble polymer materials are more suitable for sewage treatment and papermaking due to the charge adsorption effect of cationic groups. [0003] At present, polyacrylamide-based water-soluble polymer materials usually appear in the application field in the form of polymer aqueous solution, polymer gel, polymer dry powder, and inverse emulsion or microemulsion. The aqueous solution of high molecular weight and ultra-high molecular weight polyacrylamide water-so...

Claims

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Application Information

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IPC IPC(8): C08F20/56C08F4/40C08F2/16
Inventor 冯玉军吕永利张胜束松矿赵永峰
Owner CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
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