FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for synthesis of perfluoropolyesters by oxidation of tetrafluoroethylene with oxygen in the presence of an initiating agent. Fluorohydroxy-compounds or fluorine is used as an initiating agent. Process is carried out in a fluorinated solvent medium. Invention provides enhancing yield of product, conversion of tetrafluoroethylene and output of the process, and regulation of the molecular mass value and composition of synthesized polyesters.
EFFECT: improved method of synthesis.
1 tbl, 24 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING TETRAFLUOROETHYLENE OXIDE | 1979 |
|
SU1840802A1 |
| POLYTETRAFLUOROETHYLENE OXIDE SYNTHESIS METHOD | 2008 |
|
RU2397181C2 |
| TETRAFLUOROETHYLENE OXIDE PRODUCTION PROCESS | 1987 |
|
SU1840594A1 |
| METHOD OF OXIDATION OF TETRAFLUOROETHYLENE TO PEROXIDE SIMPLE PERFLUOROPOLYETHER PRODUCING | 1997 |
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RU2194725C2 |
| METHOD OF PREPARING PERFLUORINATED EPOXIDES | 1998 |
|
RU2157805C2 |
| METHOD OF PREPARING PERFLUOROPOLYETHERS | 1994 |
|
RU2120450C1 |
| FLUORINATED THERMOPLASTIC ELASTOMERS AND METHOD OF PREPARATION THEREOF | 1995 |
|
RU2158273C2 |
| METHOD OF PRODUCING COPOLYMER OF TETRAFLUOROETHYLENE WITH 2-FLUOROSULPHONYL PERFLUOROETHYLVINYL ETHER - PROTON-CONDUCTING MEMBRANE PRECURSOR - BY EMULSION COPOLYMERISATION | 2013 |
|
RU2545182C1 |
| METHOD FOR PRODUCTION OF HALOGEN-CONTAINING POLYETHER | 1991 |
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RU2073692C1 |
| OBTAINING STABILIZED COPOLYMER FOR PROTON-CONDUCTING MEMBRANES | 2023 |
|
RU2820658C1 |
