A kind of electroactive benzoxazine resin and preparation method thereof

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 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 durin...

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.

Images