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Benzoxazine resin with electroactivity and preparation method thereof

A benzoxazine and electroactive technology, which is applied in the field of new electroactive benzoxazine resin and its preparation, can solve the problem that the performance cannot meet the needs of the electronic field, the application research of benzoxazine is less, and there is no polymer, etc. problems, to achieve the effect of easy industrial production, low softening temperature and simple curing process

Active Publication Date: 2016-12-21
四川天策聚材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still few researches on the application of benzoxazines in optoelectronic devices, sensors, electromagnetic shielding and other fields at home and abroad.
However, the performance of the existing benzoxazines still cannot meet the needs of the electronic field. In these fields, aniline oligomers are often used as model compounds for polyaniline. Aniline oligomers have a definite molecular structure, good Dissolution processability, optical, electrical, doping / dedoping, reversible redox and other properties similar to polyaniline, which has attracted the attention of many researchers.
However, in the actual application process, aniline oligomers do not have the advantages of polymers, such as mechanical properties, film-forming properties, stability, etc., which are greatly limited in practical applications.

Method used

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  • Benzoxazine resin with electroactivity and preparation method thereof
  • Benzoxazine resin with electroactivity and preparation method thereof
  • Benzoxazine resin with electroactivity and preparation method thereof

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preparation example Construction

[0071] A kind of preparation method of making described electroactive benzoxazine provided by the present invention, the steps are as follows:

[0072] 1. After adding 35-70 parts by weight of paraformaldehyde and 70-305 parts by weight of phenol into the reaction kettle, add 600-1000 parts by weight of dispersion medium, and mechanically stir for 1-3 hours at 0-30 ° C. The stirring speed is 300-600 rpm, then raise the temperature of the system to 40-50°C;

[0073] 2. Disperse 170-440 parts by weight of the electroactive primary amine intermediate into 200-600 parts by weight of the dispersion medium, and gradually add it to the system described in step S1.2. After the electroactive primary amine intermediate is added, the system is reacted at 40-60°C for 6-12 hours in a nitrogen atmosphere and protected from light;

[0074] 3. After step 2 is completed, the temperature of the reaction solution is raised to 65-150°C for reflux reaction for 1-3 hours;

[0075] 4. After step 3...

Embodiment 1

[0078] 70 parts by weight of paraformaldehyde, 185 parts by weight of phenol and 600 parts by weight of toluene were added to the reaction kettle, mechanically stirred at 25°C for 1 hour at a stirring speed of 400 rpm, and then the temperature of the system was raised to 40°C. Disperse 170 parts by weight of the electroactive primary amine intermediate of structure I in 200 parts by weight of toluene, and gradually and slowly add it to the mixed solution of paraformaldehyde and phenol. After the electroactive primary amine intermediate of structure type I was added, the temperature of the system was raised to 50°C, and after reacting for 7 hours in a nitrogen atmosphere and protected from light, the temperature was rapidly raised to 120°C, and the reaction was refluxed for 2 hours. After the reaction was completed, the reaction was stopped and cooled to room temperature. After the reaction solution was washed with alkali and water three times each, the organic phase was separa...

Embodiment 2

[0085] 70 parts by weight of paraformaldehyde, 230 parts by weight of bisphenol A and 600 parts by weight of toluene were added into the reaction kettle, mechanically stirred at 600 rpm for 2 hours at 30°C, and then the temperature of the system was raised to 50°C. Disperse 350 parts by weight of structure I electroactive primary amine intermediate in 600 parts by weight of toluene, and gradually add it into the mixed solution of paraformaldehyde and bisphenol A gradually. After the electroactive primary amine intermediate of structure type I was added, the temperature of the system was raised to 60°C, and after reacting for 8 hours in a nitrogen atmosphere and protected from light, the temperature was rapidly raised to 125°C, and the reaction was refluxed for 3 hours. After the reaction was completed, the reaction was stopped and cooled to room temperature. After the reaction solution was washed with alkali and water four times each, the organic phase was separated. The tolu...

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Abstract

The invention discloses a benzoxazine resin with electroactivity and a preparation method thereof. The benzoxazine resin with electroactivity is prepared through thermal ring-opening, curing and crosslinking of benzoxazine monomer with electroactivity. The benzoxazine monomer with electroactivity is prepared from paraformaldehyde, phenol and primary amine intermediate with electroactivity, wherein phenol is any one selected from a group consisting of phenol, cardanol, bisphenol A, hydroquinone and biphenol. The benzoxazine resin with electroactivity provided by the invention has good electrical performance and excellent mechanical properties and thermal behavior and is widely applicable to fields like electrochromic devices, chemical sensors, anticorrosion coatings and medical biomaterials; the benzoxazine resin with electroactivity is free of release of small molecules in the process of curing, and a curing process is simple and can easily realize industrial production; the benzoxazine monomer with electroactivity has the advantages of flexible molecular designing, low melting temperature, low viscosity in a molten condition, etc.; meanwhile, the benzoxazine monomer with electroactivity is soluble in a plurality of low-boiling-point solvents like acetone and chloroform, and has excellent processability.

Description

technical field [0001] The invention relates to an organic polymer material and a preparation method thereof, in particular to a novel electroactive benzoxazine resin and a preparation method thereof. Background technique [0002] Electroactive materials are mixed conductors of electrons and ions, which can be reversibly charged and discharged by adding an external circuit or adding chemical reagents. In order to maintain the electrical neutrality of the phase itself, the transferred charges in this process will be compensated by the insertion or insertion of ions (Cai Zhijiang, polypyrrole coating composite polyhydroxybutyrate film electroactive material and its preparation method, CN201110412631), a variety of polymer systems with different chemical properties have this feature, including redox or electronically conductive polymers. Conductive polymers are conjugated macrocyclic polymers with large π-bonds. The conductance properties of such polymers are not only variable...

Claims

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Application Information

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IPC IPC(8): C08G61/12
CPCC08G61/12C08G2261/11C08G2261/312C08G2261/334C08G2261/344C08G2261/5222
Inventor 赵春霞李姝靓李云涛李辉
Owner 四川天策聚材科技有限公司
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