Preparation method of organic amphoteric copolymerized macromolecular interpenetrating network gel

An interpenetrating network and polymer technology, which is applied in the field of preparation of organic amphoteric copolymer polymer interpenetrating network gel, can solve the problems of low stability of interpenetrating network gel, carcinogenicity of monomer acrylamide, gel toxicity effect, etc. , to achieve good environmental and economic benefits, a simple preparation method, and the effect of improving stability

Inactive Publication Date: 2017-05-31
SICHUAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main problem in the preparation method of organic amphoteric copolymerized polymer interpenetrating network gel is that the monomer acrylamide is a highly toxic drug that is "carcinogenic, distorting, and mutagenic", and the cross-linking agent N, N methylenebisacrylamide The toxicity is high, and there is an adverse toxic effect on the gel; the stability of the interpenetrating network gel formed by a single cross-linking agent is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1: 124.5g of methacryloyloxyethyltrimethylammonium chloride, 116g of methacrylateoxypropyl trimellitic anhydride, 177.2g of chlorogenic acid and 975ml of deionized water are added to a volume of 2L that can be sealed Stir and mix evenly in the reactor, the weight concentration of the aqueous solution is 30%, evacuate to a relative vacuum degree of -0.03MPa, then feed nitrogen to restore the reactor to normal pressure, add 12.53g of dimethacrylic acid with a number average molecular weight of 3000 The aqueous solution prepared by polyethylene glycol ester and 45ml deionized water, the weight concentration of the aqueous solution is 21%, then heated up to 37°C, and prepared by adding 1.61g potassium persulfate, 0.48g sodium bisulfite and 35.9ml deionized water Aqueous solution, the weight concentration of the aqueous solution is 21%; at a constant temperature of 37°C, the pH value is controlled to be 6, and the stirring reaction is continued for 2.2 hours to obtain...

Embodiment 2

[0009]Example 2: 228.25g of methacryloyloxyethyltrimethylammonium chloride, 435g of methacrylic acidoxypropyl trimellitic anhydride, 354.3g of chlorogenic acid and 678ml of deionized water are added to a volume of 2L that can be sealed Stir and mix evenly in the reactor, the weight concentration of the aqueous solution is 60%, evacuate to a relative vacuum of -0.07MPa, then pass nitrogen into the reactor to return to normal pressure, add 101.8g of dimethacrylic acid with a number average molecular weight of 18000 The aqueous solution prepared by polyethylene glycol ester and 159ml deionized water, the weight concentration of the aqueous solution is 39%; then the temperature is raised to 48°C, and the aqueous solution prepared by adding 7.63g potassium persulfate, 7.63g sodium bisulfite and 90ml deionized water , the weight concentration of the aqueous solution is 14.5%; at a constant temperature of 48°C, the pH value is controlled to be 8, and the reaction is carried out for 3 ...

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Abstract

The invention relates to a preparation method of organic amphoteric copolymerized macromolecular interpenetrating network gel. According to the method, methacryloyloxyethyl trimethyl ammonium chloride, trimellitic anhydride oxypropyl methacrylate and chlorogenic acid are used as comonomers; polyethylene glycol dimethacrylate is used as a cross-linking agent; potassium persulfate-sodium hydrogen sulfite is used as an initiator; a copolymerization reaction is carried out in deionized water to obtain organic amphoteric copolymerized macromolecular first network gel; the first network gel is swelled in an aqueous solution confected by ferulic acid, quinic acid, ethoxyethyl methacrylate, pentaerythritol tetramethacrylate and deionized water; monomers and a cross-linking agent in the aqueous solution generate copolymerization and esterification reactions under the action of potassium persulfate and pyridoxol hydrochloride; the organic amphoteric copolymerized macromolecular interpenetrating network gel is finally obtained.

Description

technical field [0001] The invention relates to a preparation method of an organic amphoteric copolymer interpenetrating network gel. Background technique [0002] Gel is a special dispersion system. Polymer molecules or colloidal particles are connected to form a three-dimensional space network structure, which can absorb a large amount of water swelling and is insoluble in water. It can maintain a certain shape in water and has both solid and liquid properties. nature. Macroscopically, polymer gel has a certain shape, which will be deformed when a certain external force is applied, and will return to its original shape after removing the external force, with solid viscoelasticity; microscopically, polymer gel has a three-dimensional network structure and is insoluble in water, three-dimensional Network molecules can be stretched in water and have liquid properties. The gel with softness, high water content and rubber viscoelasticity has been widely used in many fields su...

Claims

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Application Information

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IPC IPC(8): C08J3/24C08J3/075C08F283/06C08F222/20C08F220/34C08F222/14C08F220/64C08F220/28C08L35/02C08L51/08C08L33/02
CPCC08F220/64C08F222/1006C08F222/104C08F283/065C08J3/075C08J3/246C08J2333/02C08J2335/02C08J2451/08C08L33/02C08L35/02C08L2205/04C08L51/08C08F220/281
Inventor朱明江燕妮岳骁
OwnerSICHUAN NORMAL UNIVERSITY