FIELD: manufacturing technology.
SUBSTANCE: invention can be used in electronic and chemical industry, medicine and optics. First a polyacrylonitrile is obtained by homopolymerisation of acrylonitrile or copolymerisation thereof with vinyl comonomers with content of comonomers not more than 20 % in copolymer. Comonomer used is at least one or more compounds, selected from: acrylic acid, methacrylic acid, itaconic acid, methyl acrylate, methyl methacrylate, butyl acrylate, vinyl acetate, styrene. Then solid polyacrylonitrile is heat treated in an oxidative medium at 180–300 °C and pyrolyzed in an inert atmosphere at 1,000–2,400 °C.
EFFECT: higher quality and purity of single-layer carbon micro- and nanotubes, simplified method for preparing them by reducing number of steps.
1 cl, 5 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING THERMOPLASTIC POLYMERS MODIFIED BY SILICON | 2016 |
|
RU2639865C2 |
| GRAPHENE-BASED ACTIVE ELEMENT FOR ELECTROCONDUCTIVE TYPE GAS ANALYSERS | 2018 |
|
RU2716038C1 |
| FIBRE-FORMING ACRYLONITRILE COPOLYMER AND SYNTHESIS METHOD THEREOF | 2009 |
|
RU2422467C2 |
| METHOD OF PRODUCING ACRYLONITRILE COPOLYMERS IN A SOLUTION | 2020 |
|
RU2734241C1 |
| METHOD FOR INFRARED SPECTROSCOPIC DETERMINATION OF COMPOSITION OF ACRYLIC ACID COPOLYMERS | 2014 |
|
RU2557895C1 |
| METHOD FOR OBTAINING OLIGOMERS OF ACRYLONITRILE AND ITS CO-OLIGOMERS IN THE PRESENCE OF N-METHYLMORPHOLINE-N-OXIDE | 2022 |
|
RU2798656C1 |
| METHOD OF PRODUCING COPOLYMERS OF ACRYLONITRILE IN MASS | 2020 |
|
RU2734242C1 |
| NANOCOMPOSITE MAGNETIC MATERIAL AND METHOD OF ITS PRODUCTION | 2017 |
|
RU2663049C1 |
| METHOD OF OBTAINING SOLUTION OF COPOLYMER BASED ON ACRYLNITRILE IN N-METHYLMORPHOLINE-N-OXIDE | 2013 |
|
RU2541473C2 |
| METHOD FOR SYNTHESIS OF ACRYLONITRILE AND ACRYLIC ACID COPOLYMERS | 2013 |
|
RU2550873C2 |
