Reaktion #2359

ord-38955b7c995840b4ae3dced0500d7938

Reaktionsgleichung

O=C1CCCCCO1
ε-caprolactone
O=C1COCCO1
p-dioxanone
O=C1CCCCCO1.O=C1COCCO1
ε-CAPROLACTONE p-DIOXANONE

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe copolymer was dried under vacuum (0.1 mm Hg) at 80° C. for about 80 hours
  2. 2
    Sonstigeto remove any unreacted monomer
  3. 3
    Sonstigeat 25° C
  4. 4
    Sonstigeat room temperature

Vorschrift

The procedure in Example 5A is substantially repeated except that 45.7 grams (0.40 mole) of ε-caprolactone and 61.3 grams (0.60 mole) of p-dioxanone were used. The copolymer was dried under vacuum (0.1 mm Hg) at 80° C. for about 80 hours to remove any unreacted monomer. The copolymer had an inherent viscosity of 0.18 dL/g in HFIP at 25° C. The copolymer was a liquid at room temperature. The molar ratio of PCL/PDS was found to be 46.7/53.3 by proton NMR.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05728752uspto-grants-1998_03