IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Methane with Polycarbonate (PC)
Components:
   (1) Polycarbonate (PC); ; [24936-68-3]  NIST Chemistry WebBook for detail
   (2) Methane; CH4; [74-28-8]  NIST Chemistry WebBook for detail
Original Measurements:
   D.S. Pope, G.K. Feming and W.J. Koros, Macromolecules 23, 2988 (1990).

 Variables:
   Temperature = 308 K
   Pressure = 0-6.89 MPa

 Prepared By:
   Yu. P. Yampol'skii

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
    View Figure 1 for this Evaluation

Method/Apparatus/Procedure:
   Two methods of conditioning were studied. Conventionally conditioned isotherms were obtained with the samples which had been previously in contact with CO2 gas under pressure of 6.21 MPa for 2—3 h with consequent pumping for 2 days. Both isotherms were obtained by the pressure decay method.1 Exchange conditioning involved exposing the samples to CO2 gas and then sweeping it by a CH4 flux with the subsequent gravimetric determination of sorption.

 Source and Purity of Materials:
   CH4: purity >99.99 %. PC: General Electric Co., density 1.200 g/cm3, glass transition temperature 423 K.

 Estimated Errors:

   Temperature: No information given.

 References:
   1W. J. Koros and D. R. Paul, J. Polym. Sci.: Polym. Phys. Ed. 14, 1903 (1976).