HCID 178506953, Verbindung → Hfp tfe

HRID 1684018Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1684018
[C:1](S(O[Li])=O)([C:4](C(C(C([C:16]([C:19]([C:22]([F:25])([F:24])[F:23])(F)[F:20])([F:18])[F:17])(F)F)(F)F)(F)F)([F:6])[F:5])([F:3])[F:2]>O>[F:23][C:22]([F:25])([F:24])[C:19]([F:20])=[C:16]([F:18])[F:17].[F:2][C:1]([F:3])=[C:4]([F:6])[F:5]

Komponenten

3

Edukt 1

HCID 178506953HCID 178506953, Verbindung

Produkt 1

HCID 18927062Hfp tfeAusbeute 6.075,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A 400 ml autoclave was loaded with 100 ml water and 1.0 g of C8F17SO2Li. The autoclave was cooled, evacuated, and loaded with 75 g of hexafluoropropylene and 50 g of tetrafluoroethylene. A solution of 0.5 g of sodium bromate in 50 ml of water was injected over about 3 to 4 hours at 20° to 25° C. The autoclave was vented, the polymeric emulsion recovered, and the emulsion broken by freezing. Filtering, washing 10 times with 200 ml of 1:1 methanol/water, and drying under vacuum gave 31 g of hexafluoropropylene/tetrafluoroethylene copolymer too high in molecular weight to extrude in a melt index apparatus at 372° C. with a 15 kg weight.

Aufarbeitung

  1. temperatureThe autoclave was cooled
  2. customevacuated
  3. customthe polymeric emulsion recovered
  4. filtrationFiltering
  5. washwashing 10 times with 200 ml of 1:1 methanol/water
  6. customdrying under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-47c6e2116e3944939088f0a2ddf44b07
Quelldatensatz
uspto-grants-1997_06
Patentnummer
US05639837

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