Preparation method for multi-amino magnetic gel based on hyperbranched polyglycidol

Abstract

The invention discloses a preparation method for a multi-amino magnetic gel based on hyperbranched polyglycidol. The method comprises the following steps: adding 1 part by weight of hyperbranched polyglycidol and 0.4-1 part by weight of hyperbranched polyglycidol coated ferroferric oxide nano-particles into 10-30 parts by weight of dimethyl formamide; stirring for 5 minutes and then adding 4-10 parts by weight of epoxy chloropropane; increasing the temperature to 90 DEG C, stirring for 1-3 hours and then adding 2-10 parts by weight of amine molecules; stirring for 15-120 minutes at 90 DEG C, thereby acquiring the multi-amino magnetic gel based on hyperbranched polyglycidol. The method disclosed by the invention has the advantages of easily acquired raw materials, mild reaction, simplicity in operation, convenience in separation, high compounding safety, and the like. The prepared multi-amino magnetic gel based on hyperbranched polyglycidol has excellent application prospect at the aspects of adsorption, bio-separation, catalyst carrier, and the like.

Description

technical field [0001] The invention belongs to the technical field of magnetic composite materials, in particular to a preparation method of polyamino magnetic gel based on hyperbranched polyglycidol. Background technique [0002] As a functional material, magnetic gel material has response characteristics to external magnetic field, and its physical behavior can be adjusted by external magnetic field in a short time. This feature of magnetic gels makes them attractive for applications in bioseparation, adsorbents, controlled release of drugs, and immobilization of enzymes. At present, there have been many reports on the preparation of magnetic gels. In summary, there are mainly in-situ precipitation method and blending method to prepare magnetic gels. The in-situ precipitation method first utilizes polymer or gel material to absorb iron ions, and then adds lye to carry out in-situ co-precipitation reaction, and simultaneously generates magnetic iron oxide nanoparticles an...

AI Technical Summary

Problems solved by technology

Although both the blending method and the in-situ precipitation method can produce magnetic gels, there is no chemical bond between the magnetic nanoparticles of the prepared magnetic gel and the polymer matrix, and they are easily separated from the polymer matrix, resulting in magnetic coagulation. loss of colloidal properties

On the other hand, hyperbranched polyglycidol has been used to prepare gel materials due to its abundant end groups and excellent biocompatibility, but there are few reports on the use of hyperbranched polyglycidol to prepare magnetic gels.

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