Reaktionsgleichung
OCC([C@H:5]([C@@H:7]([C@@H:9]([CH2:11][OH:12])O)[OH:8])O)=O.[OH:13][CH2:14][CH2:15][CH2:16][C:17]([O-:19])=[O:18].[Na+]>>[OH:8][CH:7]([CH3:5])[CH2:9][C:11]([O-:12])=[O:13].[OH:13][CH2:14][CH2:15][CH2:16][C:17]([O-:19])=[O:18]Komponenten
3
Versuchsvorschrift
The procedure of Example 2 was repeated except that the fructose was replaced with sodium 4-hydroxybutyrate (manufactured by Aldrich Corporation) to produce 1.2 g of 3-hydroxybutyrate-4-hydroxybutyrate copolymer (comprising 20% by mole of 4-hydroxybutyrate unit) having a number average molecular weight of 467,000. The thus produced copolymer product was added to a 100 ml solution comprising 1 volume of aqueous solution of sodium hypochroride (manufactured by Wako Pharmaceutical K.K.) and 1 volume of distilled water, and the suspension was heated to 50° C. for 2 hours. The resulting product had a number average molecular weight of 182,000.
Quellen und Nachweise
- ORD-Eintrag
- ord-8a5039f60afa42afa6418534e0bb4e31
- Quelldatensatz
- uspto-grants-1996_01
- Patentnummer
- US05480394
Verknüpfte Notizen
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