FIELD: polyimides and copolyimides.
SUBSTANCE: invention relates to polyimides and copolyimides based on 5,5'-(1,1,1,3,3,3-hexafluoropropan-2,2-diyl)bis(2-benzofuran-1,3-dione). This material is intended for the manufacture of polyimide materials such as optically transparent dielectric materials. This material can be used in the production of optically transparent films for the optoelectronic industry. Polyimide and copolyimide have the general formula:
,
where n = 50÷100, m = 50÷0.
EFFECT: expanding the range of optically transparent adamantane-containing polyimides and copolyimides for the production of optically transparent dielectrics, increasing the optical transparency of polymers, reducing the yellowness index and copolymers while improving their dielectric characteristics.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICALLY TRANSPARENT ADAMANTANE-CONTAINING POLYIMIDES AND COPOLYIMIDES BASED ON 5.5'-(1,1,1,3,3,3-HEXAFLUOROPROPANE-2,2-DIYL)BIS(2-BENZOFURAN-1,3-DIONE) HAVING LOW DIELECTRIC CONSTANT | 2020 |
|
RU2753691C1 |
| POLYIMIDES AND COPOLYIMIDES AS DIELECTRIC MATERIALS WITH INCREASED THERMAL AND OXIDATIVE STABILITY | 2022 |
|
RU2793576C1 |
| POLYIMIDES AND COPOLYIMIDES AS DIELECTRIC MATERIALS | 2020 |
|
RU2751883C1 |
| POLYIMIDES AND COPOLYIMIDES FOR PRODUCING HYDROLYTICALLY AND THERMALLY STABLE POLYIMIDE MATERIALS | 2009 |
|
RU2409599C1 |
| POLYIMIDE AND COPOLYIMIDES INTENDED FOR PRODUCTION OF POLYIMIDE MATERIALS HAVING IMPROVED HYDROLYTIC RESISTANCE | 1994 |
|
RU2072370C1 |
| COPOLYMIDES | 1977 |
|
SU681865A1 |
| 1-(4'-AMINOPHENYL)-3-AMINOETHYLADAMANTANE - MONOMER FOR SYNTHESIS OF POLYIMIDES AND COPOLYIMIDES WITH ENHANCED HYDROLYTIC RESISTANCE | 1994 |
|
RU2068840C1 |
| METHOD OF PRODUCING OPTICALLY TRANSPARENT COPOLYIMIDES | 2023 |
|
RU2826013C1 |
| METHOD OF PRODUCING OPTICALLY TRANSPARENT COPOLYIMIDES | 2023 |
|
RU2824070C1 |
| 1-AMINOMETHYL-3-AMINOETHYLADAMANTANE-MONOMER FOR SYNTHESIS OF POLYIMIDES WITH ENHANCED HYDROLYTIC RESISTANCE | 1985 |
|
SU1317879A1 |
