SDS Volume (4090)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Variables:
Room Temp:
293 - 313
$\pu{K}$
Pressure:
0.2 - 3.0
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
Equilibrium sorption was measured by the pressure decay method in the cell similar to that described in [1]. The pressure in the cell was continuously measured by a pressure transducer.
Source and Purity of Materials:
- PS films provided by Mitzubishi -Monsanto Chemical Co were studied.
References
1 Koros, W. J.; Paul, D. R.; Rocha, A. A.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 687.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Methane, $\ce{ CH4 }$; [74-82-8] NIST WebBook
- Polystyrene (PS), $\ce{ (C8H8)n }$; [9003-53-6] NIST WebBook
Experimental Data
Dual mode sorption parameters
| $T$ ($\pu{K}$) | $k_{\rm{D}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $C_{\rm{H}}^{\prime}$ ($\pu{cm3/cm3}$) | $b$ ($\pu{atm-1}$) |
|---|---|---|---|
| 293 | 0.801 | 13.0 | 0.184 |
| 303 | 0.713 | 11.0 | 0.134 |
| 313 | 0.586 | 8.81 | 0.0918 |
| 293 | 0.305 | 5.00 | 0.0811 |
| 303 | 0.277 | 4.93 | 0.0623 |
| 313 | 0.244 | 3.63 | 0.0439 |
