FIELD: chemistry.
SUBSTANCE: invention discloses siloxane block-copolymers which contain methyl(hexafluoroalkyl)siloxane links of general formula [A]{(Rf(CH3)SiO)n((CH3)2SiO)m}l [A], where n=100-30, m=0-70, n+m=100, l=1-15, k=25-125, q=5-100, where Rf and [A] are given below, for heat- and fuel-resistant materials. Rf:
[A]:
.
EFFECT: disclosed siloxane copolymers have high heat resistance and vulcanisates thereof have high fuel resistance.
1 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYDIMETHYLMETHYL(HEXAFLUOROALKYL)SILOXANES FOR HEAT-, OIL- AND PETROL-RESISTANT MATERIALS | 2013 |
|
RU2527968C1 |
| OLIGOMETHYL-ALKYL (METHYLHYDROXY) (METHYLHYDROPEROXY) SILOXANES AS ANTISTRUCTURING ADDITIVES AND VULCANISING AGENTS FOR SILOXANE CAOUTCHOUCS AND METHOD OF THEIR PRODUCTION | 2006 |
|
RU2336285C2 |
| POLYMETHYL(HEXAFLUOROALKYL)SILOXANES FOR THERMO- AND OIL-BENZO-STABLE MATERIALS | 1995 |
|
RU2078097C1 |
| POLYMETHYLALKYL[METHYL(PHENETYL)]SILOXANES FOR HEAT-, FROST-RESISTANT MATERIALS | 2011 |
|
RU2458942C1 |
| METHOD OF PRODUCING LINEAR POLY(METHYL)(HYDRIDE)SILOXANES WITH A GIVEN AVERAGE LENGTH OF A SILOXANE CHAIN | 2019 |
|
RU2712931C1 |
| HEAT- AND FUEL-RESISTANT COLD-SETTING SILOXANE SEALNIG COMPOSITION | 2013 |
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RU2534793C2 |
| POLYMETHYL(PHENETYL)SILOXANES FOR HEAT-RESISTANT MATERIALS | 2011 |
|
RU2462484C1 |
| METHYL-(HEXAFLUOROALKYL)-DICHLOROSILANES FOR SYNTHESIS OF THERMO- AND OIL-GASOLINE-STABLE FLUORO-CONTAINING SILOXANE POLYMERS | 1995 |
|
RU2101286C1 |
| METHOD OF OBTAINING POLYORGANOSILSESQUIOXANE-POLYDIORGANOSILOXANE BLOCK COPOLYMERS | 2014 |
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RU2571866C1 |
| METHOD OF PRODUCING ORGANOFLUOROSILOXANE COPOLYMERS | 2011 |
|
RU2455319C1 |
