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Application of anti-tear hydrogel to preparation of carbon dioxide responsive device

A technology of carbon dioxide and hydrogel, which is applied in the field of hydrogel and its preparation, can solve the problems of low water content in the gel and the difficulty of water molecules entering, and achieve simple preparation methods, easy long-term storage and long-distance transportation, and strong tensile strength The effect of elongation and compression resistance

Inactive Publication Date: 2017-01-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, strong hydrogen bonding makes it difficult for water molecules to enter the cross-linked pure poly 2-vinyl-4,6-diamino-1,3,5-triazine network, so the water content of the gel is extremely low

Method used

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  • Application of anti-tear hydrogel to preparation of carbon dioxide responsive device
  • Application of anti-tear hydrogel to preparation of carbon dioxide responsive device
  • Application of anti-tear hydrogel to preparation of carbon dioxide responsive device

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0020] The monomer 2-vinyl-4,6-diamino-1,3,5-triazine (100 mg, Tokyo Kasei Kogyo), N,N-dimethylacrylamide (40 mg, about 40 μl, sigma), and The cross-linking agent polyethylene glycol diacrylate (14 mg, number average molecular weight 4000, sigma) was added to a 1.5ml centrifuge tube, and after dissolving the monomer and cross-linking agent with 611 μl of dimethyl sulfoxide (DMSO), add light Initiator Irgacure 2959 (4.6 mg, 1-[4-(2-hydroxyethoxy)-phenylene]-2-hydroxy-2',2'-dimethylethanone, sigma). The solvent containing monomer, cross-linking agent and initiator was injected into the airtight mold, and the mold was irradiated in an ultraviolet curing box (XL-1000UV, Spectronics Corporation) for 40min to fully initiate free radical polymerization. Then the mold was opened to take out the gel, rinsed several times with phosphate buffer solution, so...

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Abstract

The invention discloses application of anti-tear hydrogel to preparation of a carbon dioxide responsive device. 2-vinyl-4,6-diamino-1,3,5-triazine and N,N-dimethylacrylamide are taken as monomers, and polyglycol diacrylate is taken as a crosslinking agent and the monomers and the crosslinking agent are copolymerized under the action of an initiator to form the anti-tear hydrogel. The mass ratio of 2-vinyl-4,6-diamino-1,3,5-triazine and N,N-dimethylacrylamide is (3:2)-(3:1). The anti-tear hydrogel is very strong in tensile resistance, compression resistance, tear resistance and notch resistance, and furthermore, the anti-tear hydrogel has stimulative-responsibility to CO2, and has the function of shape memory under the stimulation of CO2. The preparation method of the anti-tear hydrogel is simple and the anti-tear hydrogel is easy in long-time storage and long-distance transportation.

Description

[0001] The present invention application is a divisional application of the invention application "a carbon dioxide-responsive shape memory tear-resistant hydrogel and its preparation method and application". The application date of the parent application is May 29, 2015, and the application number is For 2015102895114. technical field [0002] The present invention relates to a kind of hydrogel and preparation method, more specifically, relate to a kind of 2-vinyl-4,6-diamino-1,3,5-triazine, N,N-dimethylacrylamide Copolymer (PVDT-co-PDMA) hydrogel and preparation method thereof, with high strength, tear resistance, CO 2 Responsiveness and shape memory function. Background technique [0003] Hydrogel is a polymer material with cross-linked structure, which is hydrophilic but water-insoluble and can absorb a large amount of water (usually the water content is greater than 50% of the total mass) with water as the dispersion medium. Environmentally sensitive hydrogels or smar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F267/06C08F226/02C08F220/54C08F2/48
CPCC08F2/48C08F267/06C08F226/02
Inventor 刘文广许兵
Owner TIANJIN UNIV