FIELD: chemistry.
SUBSTANCE: present invention relates to a group of inventions: a polymer-metal-carbon nanocomposite electromagnetic material, a method of producing a polymer-metal-carbon nanocomposite electromagnetic material. Polymer-metal-carbon nanocomposite electromagnetic material includes a polymer matrix of a polyconjugated polymer, in which cobalt- and iron-containing magnetic nanoparticles (MNP) fixed on single-wall carbon nanotubes (SWCNT) are dispersed. Polymer matrix is polydiphenylamine-2-carboxylic acid (PDPAC). MNP is a mixture of magnetic Co-Fe, γ-Fe, β-Co, Fe3C nanoparticles with diameter of 20÷65 nm and diameter 100÷350 nm. Total content of MNP in said material is 27–60 wt.% and cobalt content of 5–30 wt.% of the weight of the Fe3O4/SWCNT/PDPAC nanocomposite, and SWCNT 1–3 wt.% of the weight of the monomer — diphenylamine-2-carboxylic acid (DPAC). This method involves obtaining a precursor by removing an organic solvent from a magnetic liquid at temperature of 60–85 °C and infrared heating of precursor for 2–10 minutes in an argon atmosphere at temperature of 700–800 °C. Magnetic fluid is a stable suspension of the Fe3O4/SWCNT/PDPAC nanocomposite with a core-shell structure based on a polyconjugated polymer and magnetic nanoparticles, in which the Co (II) salt is dissolved with cobalt content of 5–30 wt.% of the weight of the Fe3O4/SWCNT/PDPAC nanocomposite.
EFFECT: creation of a polymer-metal-carbon nanocomposite electromagnetic material with superparamagnetic properties, high saturation magnetization, high electrical conductivity and heat resistance, which can be used in magnetic information recording systems, medicine, as antistatic coatings and materials absorbing electromagnetic radiation, for creation of sensors and nanoprobes, rechargeable batteries, sensors, supercapacitors and other electrochemical devices.
2 cl, 20 dwg, 1 tbl, 15 ex
