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A kind of rapid self-healing betaine type zwitterionic polymer hydrogel and preparation method thereof

A technology of zwitterion and betaine, which is applied in the field of rapid self-repairing betaine type zwitterionic polymer hydrogel and its preparation, can solve the problems of long time and external stimulation, and achieve the requirement of no external stimulation and specific environmental requirements Effect

Active Publication Date: 2022-06-24
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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  • A kind of rapid self-healing betaine type zwitterionic polymer hydrogel and preparation method thereof
  • A kind of rapid self-healing betaine type zwitterionic polymer hydrogel and preparation method thereof
  • A kind of rapid self-healing betaine type zwitterionic polymer hydrogel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0032] A preparation method of fast self-healing betaine-type zwitterionic polymer hydrogel, characterized in that the specific steps of the method are:

[0033] (1) The methacrylic acid functional monomer SCMHBMA, N,N' dimethylaminopropyl methacrylamide, N,N' methylenebisacrylamide containing 2-ureido-4-pyrimidinone unit and azobisisobutyronitrile were added to 50 parts of acetone, and then radical polymerization was carried out under thermal initiation conditions for 10 hours to obtain a polymerization product;

[0034] (2) The polymer product is t...

Embodiment 2

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

[0040] A preparation method of fast self-healing betaine-type zwitterionic polymer hydrogel, characterized in that the specific steps of the method are:

[0041](1) The methacrylic acid functional monomer HEMA-UPy, N,N'-dimethylaminopropyl methacrylamide, dihydroxyethylene and azodicarbonate containing 2-ureido-4-pyrimidinone unit Dimethyl isobutyrate was added to 50 parts of chloroform, and then radical polymerization was carried out under thermal initiation conditions for 12 hours to obtain a polymerized product;

[0042] (2) take out the polymerization produ...

Embodiment 3

[0046] A fast self-healing betaine-type zwitterionic polymer hydrogel, the raw material components and parts by weight of the hydrogel are: 54 parts of N,N' dimethylaminopropyl methacrylamide, containing 2- 5 parts of methacrylic acid functional monomer PEGMA-UPy of ureido-4-pyrimidinone unit, 0.59 parts of N,N' vinylbisacrylamide, 55 parts of 1,4-butane sultone, dioxane 170 parts and 0.3 parts of cyclohexanone peroxide.

[0047] A preparation method of fast self-healing betaine-type zwitterionic polymer hydrogel, characterized in that the specific steps of the method are:

[0048] (1) Methacrylic acid functional monomer PEGMA-UPy, N,N' dimethylaminopropyl methacrylamide, N,N' vinylbisacrylamide containing 2-ureido-4-pyrimidinone unit and cyclohexanone peroxide were added to 50 parts of dioxane, and then radical polymerization was carried out under thermal initiation conditions for 6 hours to obtain a polymerization product;

[0049] (2) The polymer product was taken out and...

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Abstract

The present disclosure provides a rapid self-healing betaine type zwitterionic polymer hydrogel, the raw material components of the hydrogel include: a tertiary amine containing a carbon-carbon double bond, a 2-ureido-4-pyrimidinone Units of methacrylic acid functional monomers, crosslinking agents, lactone compounds, solvents and initiators. The betaine-type zwitterionic polymer hydrogel can complete self-healing in a short period of time without external stimulation and specific environmental requirements.

Description

technical field [0001] The present disclosure relates to the field of polymer hydrogels, in particular to a fast self-repairing betaine-type zwitterionic polymer hydrogel and a preparation method thereof. Background technique [0002] In recent years, betaine-type zwitterionic polymer hydrogels have attracted extensive attention due to their non-toxic, efficient antifouling, and resistance to non-specific protein adsorption. Broad application prospects. However, due to the highly hydrophilic groups in the side chains of betaine-type zwitterionic polymers, the hydrogels have poor physical and mechanical properties, thus limiting their applications. At the same time, the betaine-type zwitterionic polymer hydrogel will be bumped or scratched during use, which will directly affect its safety and service life. In order to solve this problem, it is one of the most effective ways to make betaine-type zwitterionic polymer hydrogels with self-healing ability. At present, self-heal...

Claims

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Application Information

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Patent Type & Authority Patents(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