Glycolic Acid → Poliglecaprone

HRID 379495

Reaktionsgleichung

Reaktionsgleichung von HRID 379495
[CH2:1]1[O:8][C:6](=[O:7])[CH2:5][O:4][C:2]1=[O:3].[C:9]1(=[O:16])[O:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]1.CCCCC(C([O-])=O)CC.CCCCC(C([O-])=O)CC.[Sn+2].C(O)(=O)CO>>[C:9]1(=[O:16])[O:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]1.[CH2:1]1[O:8][C:6](=[O:7])[CH2:5][O:4][C:2]1=[O:3]

Komponenten

5

Edukt 4

HCID 757Glycolic AcidHCID 93182-ethylhexanoic acid tin(II) saltHCID 10401epsilon-CAPROLACTONEHCID 65432Glycolide

Produkt 1

HCID 65431Poliglecaprone

Reaktionsbedingungen

Temperatur
150 °C

Versuchsvorschrift

Glycolide (0.21 moles) was mixed with ε-caprolactone (4.0 moles) and a catalytic amount of stannous octoate (0.8 mole) and glycolic acid (0.40 moles). The system was heated to 150° C. and was stirred at this temperature for 14 hours. At the conclusion of the reaction, the unreacted monomer was removed by heating at 120° C. under reduced pressure for 1 hour. The resulting polymer had a peak melting temperature of 54.3° C. as measured by DSC.

Aufarbeitung

  1. customAt the conclusion of the reaction
  2. customthe unreacted monomer was removed
  3. temperatureby heating at 120° C. under reduced pressure for 1 hour

Quellen und Nachweise

ORD-Eintrag
ord-515a6a6c9ec040f88ec84ca01eb6da11
Quelldatensatz
uspto-grants-2001_10
Patentnummer
US06299631B1

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