Reacción #2359

ord-38955b7c995840b4ae3dced0500d7938

Reactivos

Ninguno

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

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

Procedimiento

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.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05728752uspto-grants-1998_03