SDS Volume (4034)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Barbari, T. A.; Koros, W. J.; Paul, D. R.; J. Polym. Sci. B: Polym. Phys. 26, 729-744 (1988).
Variables:
Room Temp:
308
$\pu{K}$
Pressure:
0 - 2.3
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
The sorption apparatus and procedures used in the present sorption experiments are the same as described earlier [1].
Source and Purity of Materials:
- Gas: purity > 99.99% (chromatographic quality). PHI (Ultem): General Electric Co., $\rho = \pu{1.28 g mL-1}$, $T_{\rm{g}}$ = 488 K.
Estimated Errors:
Ambient temperature: No information given.
References
1 Koros, W. J.; Paul, D. R.; Rocha, A. A.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 687.
Components:
- Nitrogen (Molecule), $\ce{ N2 }$; [7727-37-9] NIST WebBook
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Methane, $\ce{ CH4 }$; [74-82-8] NIST WebBook
- Polyetherimide (PEI), [61128-24-3] NIST WebBook
Experimental Data
Table 1. Dual-mode sorption parameters for various gases in polyetherimide at 308 K
| $T$ ($\pu{K}$) | $k_{\rm{D}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $C_{\rm{H}}^{\prime}$ ($\pu{cm3/cm3}$) | $b$ ($\pu{atm-1}$) |
|---|---|---|---|
| 308 | 0.758 | 25.02 | 0.366 |
| 308 | 0.207 | 7.31 | 0.136 |
| 308 | 0.063 | 4.15 | 0.045 |
