IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Ethylene, Nitrous oxide and Poly(methyl methacrylate) (PMMA)

   (1) Poly(methyl methacrylate) (PMMA); ; [9011-14-7]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Ethylene with Nitrous oxide; C2H4, N2O; [74-85-1, 10024-97-2]  NIST Chemistry WebBook for detail

Original Measurements:
   W.J. Koros and E.S. Sanders, J. Polym. Sci. Symp. 72, 142 (1985). E.S. Sanders and W.J. Koros J. Polym. Sci., Polym. Phys. Ed. 24, 175 (1986).

   Temperature = 308 K
   Pressure = 308 K

Prepared By:
   A.K. Bokarev

Experimental Remarks:

   The following figures (Figs. 9-11) refer to mixed gas sorption of CO2/C2H4 and CO2/N2O. Points are experimental data, solid lines are predictions of DMS equation and dashed lines are prediction of equation:



All the parameters for gases (1) and (2) are pure components sorption parameters from Table 1.

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)

Dual mode parameters for pure component sorption of CO2, C2H2, and N2O in PMMA
Chemical NameHenry's law constant, K [cm3(STP)/cm3 atm]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]
View Figure 1 for this Evaluation

View Figure 2 for this Evaluation

View Figure 3 for this Evaluation

View Figure 4 for this Evaluation

   An apparatus for precise measurement is both pure and mixed gas sorption in glassy polymers was used. Details in Ref. I.

Source and Purity of Materials:
   CO2: Air Products; purity 99.99 % (Coleman grade).
C2H4: Airco Research Triangle Park; purity 99.5 % (2.5 grade).
N2O: Airco Research Triangle Park; purity 99.5 % (4.5 grade).
PMMA: Aldrich Chemical Co.; Mw = 600 000.

Estimated Errors:

   Temperature: No information given.

   1E. S. Sanders, W. J. Koroa, B. Hopfenberg, as4 V. Stasnetl, J. Membr. Sd. 13, 161 (1983).
   2W. J. Koros, J. Polym. Sci. Polym. Phys. Ed. 18, 981 (1980).