Ethylene carbonate → Ethylene carbonate
Reaktionsgleichung
[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1>O.O.O.[O-][Sn]([O-])=O.[Na+].[Na+]>[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1.[C:1](=[O:5])=[O:2]Komponenten
4
Edukt 1
Produkt 2
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 175 °C
Versuchsvorschrift
A 10:1 mole ratio of ethylene carbonate to polyester poly (Formrex® 11-225, a hydroxyl functional diethylene glycol adipate, MW=500, manufactured by Witco) is heated with stirring under a nitrogen atmosphere for 3.5 hours at 175° C. using 0.5 percent sodium stannate trihydrate as catalyst to give 97.3 percent ethylene carbonate conversion to a poly(alkylene carbonate) polyol with 18.7 percent carbon dioxide. The catalyst was removed as in Example 1.
Aufarbeitung
- temperatureis heated
Quellen und Nachweise
- ORD-Eintrag
- ord-ee50f29d4fd6404fa60c2a7c438397ec
- Quelldatensatz
- uspto-grants-1987_11
- Patentnummer
- US04709069
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