Method for preparing electrically conductive hydrogel

Abstract

The invention discloses a method for preparing electrically conductive hydrogel. The method includes steps of (1), uniformly dispersing hydrophilic monomers or hydrophilic polymers in hydrochloric acid aqueous solution to obtain stable dispersion liquid, adding electrically conductive monomers and metal alkoxide into the dispersion liquid and uniformly stirring the electrically conductive monomers, the metal alkoxide and the dispersion liquid; (2), adding initiators and catalysts into mixed liquid obtained at the step (1), uniformly mixing the initiators, the catalysts and the mixed liquid with one another and then carrying out reaction at the temperature ranging from -20 DEG C to 50 DEG C for 24-72 hours. The electrically conductive hydrogel can be obtained after the reaction is completely carried out. The mass of the electrically conductive monomers is 1-20% of the mass of the hydrochloric acid aqueous solution, is 20-100% of the mass of the metal alkoxide and is 0.2-85% of the massof the hydrophilic monomers or the hydrophilic polymers. The mass of the initiators is 0.5-5% of the mass of the electrically conductive monomers, and the mass of the catalysts is 0.01-5% of the massof the hydrophilic monomers. Compared with existing methods, the method has the advantages that the electrically conductive hydrogel prepared by the aid of the method is excellent in mechanical property and electrochemical performance and can be prepared at one step, and the method includes simple processes for preparing the electrically conductive hydrogel and is low in raw material usage.

Description

technical field [0001] The invention belongs to the field of functional polymer materials, and in particular relates to a preparation method of conductive hydrogel. technical background [0002] Hydrogel is a soft material composed of water and a three-dimensional polymer network. The cross-linking points in the network are chemical cross-linking points formed by covalent bonds or non-covalent interactions such as ionic bonds, hydrogen bonds, hydrophobic interactions, and coordination interactions. Bonds form physical cross-links. Because of its soft and wet properties similar to biological tissues, it has important application prospects in the fields of drug delivery, biosensors and actuators, and biomimetic smart materials. [0003] Conductive hydrogels combine the dual characteristics of hydrogels and conductive substances. Under the premise of maintaining dimensional stability, they can have different conductivity ranges, so they can be used in biomedicine, tissue engin...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the present invention is to provide a preparation method of conductive hydrogel to solve the problem of poor mechanical properties and electrochemical properties of the existing conductive hydrogel