Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof

A magnetic material, iron phthalocyanine pre-technology, applied in the direction of magnetism, nanotechnology, nanotechnology, etc. of organic materials/organic magnetic materials, to achieve the effect of rapid and convenient separation, easy control, and simplified synthesis device

Inactive Publication Date: 2012-11-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a kind of phthalocyanine iron prepolymer / Fe 3 o 4 Nano-hybrid magnetic material and preparation method thereof

Method used

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  • Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof
  • Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof
  • Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1. Weigh 10 grams of diphenol-type diphthalonitrile monomer, 0.2-0.6 grams of FeCl 3 ·3H 2 O, put it into a three-necked bottle, pour 10ml of N-methylpyrrolidone as a solvent; raise the temperature and continue the reflux reaction for 2 to 6 hours after the solution changes color.

[0039] Step 2. Pour the solution into water, filter, wash the filtered solid with deionized water for 2 to 3 times, dry and collect.

[0040] Step 3. Weigh 1.0 to 4.0 grams of the sample collected in step 2 and dissolve it in 200ml of ethylene glycol solution. After it is completely dissolved, the solution is cooled to room temperature, and 6.75 grams of FeCl is added in turn. 3 ·3H 2 O, 5.0 grams of PEG2000, 18 grams of crystalline sodium acetate, stirred and reacted for 2 hours.

[0041] Step 4. Transfer the solution obtained in step 3 to a crystallization kettle, and crystallize at 200° C. for 4 hours. Among them, the addition of prepolymer has no obvious effect on the formation ...

Embodiment 2

[0045] Step 1. Weigh 10 grams of diphenol-type diphthalonitrile monomer, 0.2-0.6 grams of FeCl 3 ·3H 2 O, put into a three-necked bottle, and pour 10ml of N-methylpyrrolidone into it as a solvent. Raise the temperature to 200°C, and continue the reflux reaction for 2 to 6 hours after the solution changes color.

[0046] Step 2. Pour the solution into water, filter, wash the filtered solid with deionized water for 2 to 3 times, dry and collect.

[0047] Step 3. Weigh 1.0 to 4.0 grams of the sample collected in step 2 and dissolve it in 200ml of ethylene glycol solution. After it is completely dissolved, the solution is cooled to room temperature, and 6.75 grams of FeCl is added in turn. 3 ·3H 2 O, 5.0 grams of PEG2000, 18 grams of crystalline sodium acetate, stirred and reacted for 2 hours.

[0048] Step 4. Transfer the solution obtained in step 3 to a crystallization kettle, and crystallize at 200° C. for 8 hours. Among them, the addition of prepolymer has no obvious effe...

Embodiment 3

[0053] Step 1. Weigh 10 grams of diphenol-type diphthalonitrile monomer, 0.2-0.6 grams of FeCl 3 ·3H 2 O, put into a three-necked bottle, and pour 10ml of N-methylpyrrolidone into it as a solvent. After the temperature was raised and the color of the solution changed, the reflux reaction was continued for 2 to 6 hours.

[0054] Step 2. Pour the solution into water, filter, wash the filtered solid with deionized water for 2 to 3 times, dry and collect.

[0055] Step 3. Weigh 1.0 to 4.0 grams of the sample collected in step 2 and dissolve it in 200ml of ethylene glycol solution at 200°C. After it is completely dissolved, the solution is cooled to room temperature, and 6.75 grams of FeCl is added in turn. 3 ·3H 2 O, 5.0 grams of PEG2000, 18 grams of crystalline sodium acetate, stirred and reacted for 2 hours.

[0056] Step 4. Transfer the solution obtained in step 3 to a crystallization kettle, and crystallize at 200° C. for 15 hours. Among them, the addition of prepolymer h...

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Abstract

The invention relates to an iron phthalocyanine prepolymer / Fe3O4 nanometer hybrid magnetic material and a preparation method thereof, belonging to the technical field of the organic magnetic material. the technical problem solved by the invention is to provide a simple and efficient preparation method with low cost and then obtain the iron phthalocyanine prepolymer / Fe3O4 nanometer hybrid magneticmaterial which has small particle size, high magnetism and stable magnetic properties at the room temperature, resists high temperature and oxidation and is easy to process. The magnetic material uses 4,4'-biphenol type bisphthalonitrile as polymer monomer, FeCl3.3H2O as crosslinking agent and N-methylpyrrolidone as solvent; and the preparation method is as follows: performing early prepolymerization of solution to form phthalocyanine prepolymer, and using FeCl3.3H2O as iron source to perform sequential hydrothermal crystallization. The high temperature resistant polymer magnetic material of the invention has novel design and simple preparation method; and the saturation magnetization is 48-65emu / g, the coercive force is 37-47Oe and the residual magnetization is 0.03-0.4emu / g. The material of the invention can be widely used in the technical fields such as high temperature resistant polymer magnetic composites, electronic devices and biocatalysis technology.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a phthalocyanine iron prepolymer / Fe3O4 nano-hybrid magnetic material and a preparation method thereof Background technique [0002] Organic nano-polymer magnetic materials refer to the combination of inorganic magnetic nanoparticles and polymers by appropriate methods to form organic functional materials with certain magnetic properties and special structures. It is formed by the combination of inorganic and organic phases in the nanometer or submicron range, and there are stronger or weaker chemical bonds between the two phases. The small size effect, quantum size effect, and surface effect of nanoparticles in nano-magnetic polymer hybrid materials make it have magnetic properties that conventional grains do not have. In addition, the polymer material itself is soft, stable, and easy to process. It has become a hot spot for scholars at home and abroad to study magneti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L85/00C08K3/22C08G79/00H01F1/42B82Y40/00B82Y15/00
Inventor 刘孝波徐明珍赵睿钟家春
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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