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Quick self-repairing betaine type zwitterionic polymer hydrogel and preparation method thereof

A technology of zwitterions and hydrogels, which is applied in the field of fast self-healing betaine-type zwitterionic polymer hydrogels and its preparation, can solve problems such as long time and external stimuli, and achieve no external stimuli and specific environmental requirements Effect

Active Publication Date: 2020-04-21
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, self-healing betaine-type zwitterionic polymer hydrogels have been reported, but it takes a long time to complete self-healing or requires external stimuli and specific environments.

Method used

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  • Quick self-repairing betaine type zwitterionic polymer hydrogel and preparation method thereof
  • Quick self-repairing betaine type zwitterionic polymer hydrogel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A fast and self-repairing betaine-type zwitterionic polymer hydrogel. The raw material components and weight parts of the hydrogel are: 50 parts of N,N'dimethylaminopropyl methacrylamide, containing 2- Urea-4-pyrimidinone unit of methacrylic acid functional monomer (SCMHBMA) 1 part, N,N' methylene bisacrylamide 1.3 parts, 1,3-propane sultone 50 parts, acetone 150 parts and 0.45 parts of azobisisobutyronitrile.

[0032] A method for preparing fast self-repairing betaine-type zwitterionic polymer hydrogel is characterized in that the specific steps of the method are:

[0033] (1) The methacrylic functional monomer (SCMHBMA) containing 2-ureido-4-pyrimidinone unit, N,N'dimethylaminopropylmethacrylamide, N,N'methylene bis Acrylamide and azobisisobutyronitrile were added to 50 parts of acetone, and then subjected to free radical polymerization under thermal initiation conditions for 10 hours to obtain a polymerized product;

[0034] (2) Take out the polymerized product and place ...

Embodiment 2

[0039] A fast and self-repairing betaine type zwitterionic polymer hydrogel. The raw material components and weight parts of the hydrogel are: 56 parts of N,N'dimethylaminopropyl methacrylamide, containing 2- Urea-4-pyrimidinone unit of methacrylic acid functional monomer (HEMA-UPy) 0.57 parts, dihydroxyethylene 1.6 parts, β-propiolactone 60 parts, chloroform 250 parts and dimethyl azodiisobutyrate 2.5 parts of ester.

[0040] A method for preparing fast self-repairing betaine-type zwitterionic polymer hydrogel is characterized in that the specific steps of the method are:

[0041] (1) Combine 2-ureido-4-pyrimidinone-containing methacrylic acid functional monomer (HEMA-UPy), N,N'-dimethylaminopropylmethacrylamide, dihydroxyethylene and Dimethyl azodiisobutyrate was added to 50 parts of chloroform, and then subjected to free radical polymerization for 12 hours under thermal initiation conditions to obtain a polymerized product;

[0042] (2) Take out the polymerized product and place...

Embodiment 3

[0046] A fast and self-healing betaine type zwitterionic polymer hydrogel. The raw material components and weight parts of the hydrogel are: 54 parts of N,N'dimethylaminopropyl methacrylamide, containing 2- Urea-4-pyrimidinone unit of methacrylic acid functional monomer (PEGMA-UPy) 5 parts, N,N' vinyl bisacrylamide 0.59 parts, 1,4-butane sultone 55 parts, dioxy 170 parts of hexacyclic ring and 0.3 parts of cyclohexanone peroxide.

[0047] A method for preparing fast self-repairing betaine-type zwitterionic polymer hydrogel is characterized in that the specific steps of the method are:

[0048] (1) Methacrylic acid functional monomer containing 2-ureido-4-pyrimidinone unit (PEGMA-UPy), N,N'dimethylaminopropylmethacrylamide, N,N'vinyl bis Acrylamide and cyclohexanone peroxide are added to 50 parts of dioxane, and then a free radical polymerization reaction is carried out under thermal initiation conditions for 6 hours to obtain a polymerized product;

[0049] (2) Take out the polymer...

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Abstract

The invention provides a quick self-repairing betaine type zwitterionic polymer hydrogel. The hydrogel is prepared from tertiary amine containing a carbon-carbon double bond, a methacrylic acid functional monomer containing a 2-ureido-4-pyrimidinone unit, a cross-linking agent, a lactone compound, a solvent and an initiator. The betaine type zwitterionic polymer hydrogel can complete self-repairing in a short time, and external stimulation and specific environmental requirements are not needed.

Description

Technical field [0001] The present disclosure relates to the field of polymer hydrogels, in particular to a rapid self-repairing betaine type zwitterionic polymer hydrogel and a preparation method thereof. Background technique [0002] In recent years, betaine-type zwitterionic polymer hydrogels have received widespread attention due to their non-toxic, high-efficiency anti-fouling, and resistance to non-specific protein adsorption. They are widely used in agriculture, construction, chemical engineering, food engineering, and biomedicine. Broad application prospects. However, because the side chains of the betaine-type zwitterionic polymer are highly hydrophilic, the physical and mechanical properties of the hydrogel are poor, thereby limiting its application. At the same time, betaine-type zwitterionic polymer hydrogel will be bumped or scratched during use, which directly affects its safety and service life. In order to solve this problem, it is one of the most effective meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08F220/60C08F220/36
CPCC08J3/075C08F220/60C08J2333/24C08F220/36
Inventor 林殷雷刘晓婷王铄奇区泽贤马镇浩高柏炫
Owner FOSHAN UNIVERSITY
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