SDS Volume (4018)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Okamoto, K. I.; Tanaka, K.; Yokoshi O.; Kita, H.; J. Polym. Sci. B: Polym. Phys. 27, 643-654 (1989).
Variables:
Room Temp:
323 - 383
$\pu{K}$
Pressure:
0 - 2.7
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
Pressure decay method was used for sorption measurements. The cell employed was similar to the one described in [1].
Source and Purity of Materials:
- Polyimide was obtained by condensation of pyromellitic acid dianhidride and oxydiphenylenediamine with subsequent thermal imidization at 473 and 673 K. These samples and commercial polyimide Kapton H (Toray - DuPont Inc.) had the following densities: 1.405, 1.429, and 1.431 g mL-1, respectively. No information given on carbon dioxide purity.
References
1 Koros, W. J.; Paul, D. R.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 1903.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Copoly(pyromellitic dianhydride-oxydianiline) (PMDA-ODA), [25036-53-7] NIST WebBook
Experimental Data
Dual mode sorption parameters for carbon dioxide in polyimide films
| $T$ ($\pu{K}$) | $k_{\rm{D}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $C_{\rm{H}}^{\prime}$ ($\pu{cm3/cm3}$) | $b$ ($\pu{atm-1}$) |
|---|---|---|---|
| 323 | 0.900 | 24.2 | 0.375 |
| 353 | 0.599 | 17.7 | 0.206 |
| 383 | 0.424 | 12.0 | 0.133 |
| 353 | 0.444 | 10.6 | 0.226 |
| 323 | 0.630 | 13.3 | 0.394 |
| 353 | 0.436 | 8.5 | 0.239 |
| 383 | 0.292 | 5.7 | 0.153 |
