Lactide → Lactide-caprolactone coploymer

HRID 1929269

Reaktionsgleichung

Reaktionsgleichung von HRID 1929269
[CH3:1][CH:2]1[O:9][C:7](=[O:8])[CH:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1>[Sn].C(O)CCCCCCCCCCC>[CH3:1][CH:2]1[O:9][C:7](=[O:8])[CH:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1

Komponenten

5

Edukt 2

HCID 7272LactideHCID 10401epsilon-CAPROLACTONE

Produkt 1

HCID 123633Lactide-caprolactone coploymerAusbeute 132,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 81931-DodecanolKatalysatorHCID 5352426Tin atomKatalysator

Versuchsvorschrift

The procedure as described in Example 14 was substantially repeated except that the reaction flask was charged with 108.1 grams (0.75 moles) of DL-lactide and 28.5 grams (0.25 moles) of caprolactone. The same amount of dodecanol (5.6 mL, 0.025 moles) and Tin catalyst (0.10 mL) were used as were the reaction temperatures and times. A total of 85.3 grams of a thick viscous polymer were obtained with considerable polymer left in the reaction flask. This polymer was the most viscous of all the polymers prepared but still flowed as a liquid. The liquid polymer had a molecular weight as determined by GPC-MALS of 8086 daltons with a polydispersity of 1.21.

Aufarbeitung

  1. customthe reaction temperatures and times

Quellen und Nachweise

ORD-Eintrag
ord-703ee26898014fddb59b04c0115e7978
Quelldatensatz
uspto-grants-2012_05
Patentnummer
US08187640B2

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