FIELD: chemistry.
SUBSTANCE: invention claims application of amorphous perfluorated polymers in obtaining transparent films with transparency over 50% at 157 nm width, where the perfluorated polymers do not contain ion end groups and consist of cyclic units obtained from perfluorodioxols of formula: 
, where R'F is the same as RF or ORF, where RF is linear or branched perfluoroalkyl radical with 1-5 carbon atoms; X1 and X2 are the same or different and represent F, CF3; the polymers include optionally units obtained from perfluorated comonomers containing at least one unsaturated ethylene-type link and optionally containing oxygen atoms; cyclic polymers units obtained from perfluordioxols of formula (IA) comprise ≥95 % of mol quantity.
EFFECT: obtaining highly transparent amorphous perfluorated polymers.
8 cl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PERFLUORIDATED POLYMERS | 2004 |
|
RU2341537C2 |
| PERFLUORO-ELASTOMERS | 2005 |
|
RU2378294C2 |
| FLUOROELASTOMERS | 2005 |
|
RU2383555C2 |
| POROUS HYDROPHILIC MEMBRANE AND METHOD FOR PRODUCTION THEREOF | 2002 |
|
RU2277436C2 |
| POROUS HYDROPHILIC DIAPHRAGM AND THE METHOD OF ITS PRODUCTION | 2002 |
|
RU2279306C2 |
| OBTAINING STABILIZED COPOLYMER FOR PROTON-CONDUCTING MEMBRANES | 2023 |
|
RU2820658C1 |
| PERFLUORODIOXOLS, METHOD OF PREPARING THEREOF (VARIANTS), PERFLUORODIOXOLE HOMOPOLYMERS AND COPOLYMERS, THERMALLY PROCESSIBLE TETRAFLUOROETHYLENE COPOLYMERS | 1994 |
|
RU2139866C1 |
| FLUOROVINYL ETHERS AND POLYMERS PREPARED THEREFROM | 2001 |
|
RU2269506C2 |
| METHOD OF PRODUCING FLUOROPOLYMERS | 2009 |
|
RU2497836C2 |
| FLUOROELASTOMERS | 2001 |
|
RU2271368C2 |
