Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of organic magnetic polymer material and preparation method thereof

A kind of polymer material and polymer technology, applied in the magnetic direction of organic materials/organic magnetic materials, etc., can solve the problems of loss of order and no literature reports

Active Publication Date: 2021-07-27
SHANDONG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2017, Jiang et al. reported the first organic magnetic COF material that exhibited magnetic characteristics at low temperature after doping with iodine (Science, 2017, 673); Wu et al. reported a case of a COF material based on a triphenylmethane structure. Chloro-p-benzoquinone is oxidized to trityl methylene radicals, which exhibit anti-ferromagnetic properties at low temperatures, but the order is lost after oxidation (Angew.Chem.Int.Ed.2018,57,8007); Wu et al. Almost simultaneously in 2018, Baek et al. reported disordered organic polymers based on triazine structures with magnetic properties at room temperature (Chem, 2018, 4, 2479; Chem, 2019, 5, 1012)
[0010] After searching, there is no literature report on ordered porous magnetic polymer materials that do not require additional doping and oxidation processes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of organic magnetic polymer material and preparation method thereof
  • A kind of organic magnetic polymer material and preparation method thereof
  • A kind of organic magnetic polymer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of an organic magnetic polymer material, the steps are as follows:

[0050] (1) In a quartz glass tube with inner and outer diameters of 12mm and 22mm and a length of 20mm, add 2,4,6-trisphenoloxy-1,3,5-triphenylaldehyde (THP) 105mg, Dithioacetamide 96mg, benzimidazole 708mg, shake and mix well, then add solvent, the solvent is a mixture of 4.5ml N-methylpyrrolidone and 4.5ml mesitylene, mix ultrasonically for 15 minutes; seal the quartz tube, then immerse Cooled with liquid nitrogen, and degassed 3 times by freezing and thawing pump circulation method;

[0051] (2) Melt and seal the degassed glass nozzle, and place the whole system in a constant temperature oven at 185°C to react for 6 days; after the temperature of the reaction system drops to room temperature, break the seal of the reaction tank, pour out the product and Filter, wash the filter cake with trimethylbenzene, N-methylpyrrolidone, a large amount of water, and acetone in turn until th...

Embodiment 2

[0055] With the preparation method of organic magnetic polymer material described in embodiment 1, difference is:

[0056] 2,4,6-triphenoloxy-1,3,5-triphenylcarbaldehyde (THP) was added in an amount of 100 mg, dithioacetamide was added in an amount of 90 mg, and benzimidazole was added in an amount of 700 mg.

Embodiment 3

[0058] With the preparation method of organic magnetic polymer material described in embodiment 1, difference is:

[0059] The solvent was a mixture of 5 mL of N-methylpyrrolidone and 5 mL of mesitylene.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an organic magnetic polymer material. The structure of the organic magnetic polymer material is a polymer network structure bridged by thiazo[5,4-d]thiazole, and the structure contains 1,3,5- Triphenol structural unit and thiazolo[5,4‑d]thiazole linking group, in which 1,3,5‑triphenol is partially or fully dehydrogenated to generate free radicals. The organic magnetic polymer material of the present invention is composed of pure organic elements, and there are phenolic oxygen groups and free radicals in the structure; the material structure is highly ordered, but the existence of structural defects is not excluded, and it is crystalline or amorphous. Under the reaction conditions, the phenolic oxygen group spontaneously undergoes homolysis and dehydrogenation to generate phenolic oxygen radicals, and the lone electrons of the free radicals form local polarization to generate magnetic moments, making the material exhibit magnetic characteristics at low temperatures (<100K); The range of specific surface area is 40m 2 / g to 2000m 2 / g; two-dimensional sheet structure or three-dimensional network structure.

Description

technical field [0001] The invention relates to an organic magnetic polymer material and a preparation method thereof, belonging to the technical field of organic polymer materials. Background technique [0002] Magnetic materials are a kind of basic functional materials. Traditional magnetic materials are mainly inorganic substances (such as ferrite) or mixed magnetic materials mainly composed of inorganic substances. In recent years, the emergence of high molecular organic magnetic materials has become a new member of the magnetic material family, and is considered by domestic and foreign experts to be one of the most important achievements in the field of science and technology in the late 1980s. Its unique features are: 1. Its composition is completely organic matter, with low density and easy molding. It has important applications in special magnetic devices such as aerospace; 2. Because organic magnetic materials have good insulation and no eddy current, they can be us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06H01F1/42
CPCC08G73/06H01F1/42
Inventor 王新波张平霞
Owner SHANDONG UNIV