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Radical Photopolymerization Initiating System Based on Amino Acid Derivatives and Method for Initiating Free Radical Photopolymerization

A technology of photopolymerization initiation and free radicals, which is applied in the field of photopolymerization initiation system, can solve the problems of low efficiency of L-arginine and silk fibroin peptide co-initiation, high efficiency of sulfur-containing amino acids, and unstable oxidation performance. Achieve excellent biocompatibility, high photoinitiation efficiency, and good biocompatibility

Active Publication Date: 2022-05-17
HAINAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that combinations of aromatic ketones / sulfur-containing amino acids, riboflavin / L-arginine, camphorquinone / silk fibroin peptides, etc. all exhibit a certain ability to initiate free radical photopolymerization, but there are limitations in application, and the efficiency of sulfur-containing amino acids is high But it is easy to oxidize and unstable, and the efficiency of co-initiation of L-arginine and silk peptide is not high

Method used

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  • Radical Photopolymerization Initiating System Based on Amino Acid Derivatives and Method for Initiating Free Radical Photopolymerization
  • Radical Photopolymerization Initiating System Based on Amino Acid Derivatives and Method for Initiating Free Radical Photopolymerization
  • Radical Photopolymerization Initiating System Based on Amino Acid Derivatives and Method for Initiating Free Radical Photopolymerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of radical photopolymerization initiation system, its each component is as follows:

[0042] The first component: Camphorquinone 0.5%

[0043] The second component: glycine methyl ester 0.5%

[0044] The visible light initiating system is prepared according to the above-mentioned proportion, and the weight of the water-soluble photopolymerization system is 100%. Add the visible light triggering system to the aqueous solution containing 75% hydroxyethyl acrylate and mix well, adjust the pH values ​​to 4, 5, 6, 7, and 8 with 10% sodium hydroxide solution respectively, and obtain five kinds of transparent and clear light The polymerization reaction liquid is used for photopolymerization performance test.

[0045] Photopolymerization reaction: The prepared photocuring reaction solution is placed in a capillary dilatometer and irradiated under a 150W metal halide lamp for 10Min with a light intensity of about 20mW / cm 2 . The height of the drop of the liquid level ...

Embodiment 2

[0047] A kind of radical photopolymerization initiation system, its each component is as follows:

[0048] The first component: Camphorquinone 0.5%

[0049] The second component: N-methylglycine ethyl ester 0.5%

[0050] The visible light initiating system is prepared according to the above-mentioned proportion, and the weight of the water-soluble photopolymerization system is 100%. Add the visible light triggering system to the aqueous solution containing 75% hydroxyethyl acrylate and mix well, adjust the pH values ​​to 4, 5, 6, 7, and 8 with 10% sodium hydroxide solution respectively, and obtain five kinds of transparent and clear light The polymerization reaction liquid is used for photopolymerization performance test.

[0051] Photopolymerization reaction: The prepared photocuring reaction solution is placed in a capillary dilatometer and irradiated under a 150W metal halide lamp for 10Min with a light intensity of about 20mW / cm 2 . The height of the drop of the liquid...

Embodiment 3

[0053] A kind of radical photopolymerization initiation system, its each component is as follows:

[0054] The first component: Camphorquinone 0.5%

[0055] The second component: N,N-Dimethylglycine ethyl ester 0.5%

[0056] The visible light initiating system is prepared according to the above-mentioned proportion, and the weight of the water-soluble photopolymerization system is 100%. Add the visible light triggering system to the aqueous solution containing 75% hydroxyethyl acrylate and mix well, adjust the pH values ​​to 4, 5, 6, 7, and 8 with 10% sodium hydroxide solution respectively, and obtain five kinds of transparent and clear light The polymerization reaction liquid is used for photopolymerization performance test.

[0057] Photopolymerization reaction: The prepared photocuring reaction solution is placed in a capillary dilatometer and irradiated under a 150W metal halide lamp for 10Min with a light intensity of about 20mW / cm 2 . The height of the drop of the li...

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Abstract

The invention relates to a photopolymerization initiating system, in particular to a free radical photopolymerization initiating system based on amino acid derivatives and a method for initiating free radical photopolymerization, belonging to the technical field of free radical polymerization. A free radical photopolymerization initiating system based on amino acid derivatives, based on the total weight of the water-soluble photopolymerization system as 100%, the free radical photopolymerization initiating system includes the following components in weight percentage: the first component: photosensitive agent, 0.01-1%; the second component: co-initiator, 0.25-1.25%, and the co-initiator is a nitrogen-terminal non-phenyl substituted carboxy-terminal blocked glycine derivative. The co-initiator of the present invention is a glycine derivative with non-phenyl-substituted carboxy-terminal closure at the nitrogen end, which is a colorless compound without chromophoric groups; the photoinitiating system has high tolerance to environmental alkali; The photoinitiation efficiency is excellent.

Description

technical field [0001] The invention relates to a photopolymerization initiating system, in particular to a free radical photopolymerization initiating system based on amino acid derivatives and a method for initiating free radical photopolymerization, belonging to the technical field of free radical polymerization. Background technique [0002] Photopolymerization (photocuring) is a process in which liquid monomers and / or oligomers undergo cross-linking and polymerization to form solid products under the irradiation of light (visible or ultraviolet light) or high-energy rays. It is energy-saving, environmentally friendly, and room temperature Polymerization, high polymerization speed, controllability of polymerization time and space, etc., is an environmentally friendly green production and processing technology. Since its invention in the 1960s, it has strongly promoted the progress of polymer science. It has a wide range of applications in the fields of medical repair, mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/50C08F120/20C08F120/54C08F220/20C08F220/54
CPCC08F2/50C08F120/20C08F120/54C08F220/20C08F220/54
Inventor 南旭莹吴明书陈光英姚玉华
Owner HAINAN NORMAL UNIV
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