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Self-healing injectable supramolecular hydrogel and preparation method and application thereof

A supramolecular hydrogel, self-healing technology, applied in the field of self-healing injectable supramolecular hydrogel and its preparation, can solve the problem that self-healing injectable supramolecular gel cannot meet the needs of society, etc. Achieve excellent ionic conductivity, good application prospects, and low prices

Inactive Publication Date: 2018-11-09
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above situation, current research on self-healing injectable supramolecular gels is far from meeting the needs of society.

Method used

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  • Self-healing injectable supramolecular hydrogel and preparation method and application thereof
  • Self-healing injectable supramolecular hydrogel and preparation method and application thereof
  • Self-healing injectable supramolecular hydrogel and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0028] Accurately weigh 40.0 mg guanosine, 17.4 mg pyridine-4-boronic acid, and 1000.0 mg 0.14 mol / L KCl aqueous solution in a glass vial, heat until completely dissolved, and cool naturally to obtain a hydrogel sample. In the hydrogel, the molar ratio of guanosine to pyridine-4-boronic acid is 1:1, and the mass of guanosine accounts for 4% of the mass of the KCl aqueous solution.

Embodiment 2

[0030] Accurately weigh 20.0 mg guanosine, 13.1 mg pyridine-4-boronic acid, and 1000.0 mg 0.07 mol / L KCl aqueous solution in a glass vial, heat until completely dissolved, and cool naturally to obtain a hydrogel sample. In the hydrogel, the molar ratio of guanosine to pyridine-4-boronic acid is 1:1.5, and the mass of guanosine accounts for 2% of the mass of the KCl aqueous solution.

Embodiment 3

[0032] Accurately weigh 40.0 mg guanosine, 17.4 mg pyridine-4-boronic acid, and 1000.0 mg 0.14 mol / L KOH aqueous solution in a glass vial, heat until completely dissolved, and cool naturally to obtain a hydrogel sample. In the hydrogel, the molar ratio of guanosine to pyridine-4-boronic acid is 1:1, and the mass of guanosine accounts for 4% of the mass of the KOH aqueous solution.

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Abstract

The invention relates to self-healing injectable supramolecular hydrogel and a preparation method and application thereof. The hydrogel is prepared by heating commercial guanosine and arylboronic acidcompound in brine or aqueous alkali and cooling. The preparation process is simple and green, is convenient to operate, requires no tedious synthesis or purification steps, has low production cost and is suitable for large-scale production. The prepared supramolecular hydrogel has good self-healing performance, viscoelasticity, injectability, ionic conductivity, mechanical property regulation anduse safety, and has a good application prospect in the field of ion skin and gel electrolytes.

Description

technical field [0001] The invention belongs to the field of hydrogel preparation, in particular to a self-healing injectable supramolecular hydrogel and its preparation method and application. Background technique [0002] Self-healing gel materials refer to a class of smart soft materials that can restore their macroscopic properties and functions after the gel is damaged by external forces, such as cutting and perforation. It is widely used in fields such as materials, which can reduce the maintenance and replacement costs of materials and improve the service life of materials. However, most of the self-healing gel materials reported so far are polymer gels based on polymer gelling agents, and only a small amount of self-healing gels are supramolecular gels based on small molecule gelling agents. And the structure of the gelling agent is complicated, the synthesis steps are loaded down with trivial details, and the production cost is higher. [0003] Supramolecular gels...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08G83/00
CPCC08G83/008C08J3/075C08J2387/00
Inventor 李晶晶耿莉芳魏宏亮朱丽敏郭涛张霞
Owner HENAN UNIVERSITY OF TECHNOLOGY
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