SDS Volume
Volume 70. Solubility of Gases in Glassy Polymers, p None
Source Publication
Barrer, R. M.; Barrie, J. A.; Slater, J.; J. Polym. Sci. 1958, 27(115), 177-197.
Chan, A. H.; Koros, W. J.; Paul, D. R.; J. Membr. Sci. 3, 117 (1978).
Conditions:
Room Temp:
303.7 - 353
$\pu{K}$
Pressure:
0 - 24
$\pu{kPa}$
Compiler:
Methodology:
A glass volumetric apparatus was employed. The sorption system was immersed in a thermostat and the pressure was read by a cathetometer. A nonlinear least squares program was used to calculate sorption parameters as in [1].
Sample Information:
- EC: Standard Ethocel, $\rho = \pu{1.13 g mL-1}$, M = 35 000.
Measurement Errors:
Ambient temperature: Precision in T: ±0.05 K.
Mass concentration (m/v) (1): Relative precision: p ±6.6%.
Methodology Citation
1 Koros, W. J.; Paul, D. R.; Rocha, A. A.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 687.
System Components:
- Butane, $\ce{ C4H10 }$; [106-97-8] NIST WebBook
- 2-Methylpropane, $\ce{ C4H10 }$; [75-28-5] NIST WebBook
- 2,2-Dimethylpropane, $\ce{ C5H12 }$; [463-82-1] NIST WebBook
- Ethyl Cellulose, $\ce{ C23H24N6O4 }$; [9004-57-3] NIST WebBook
Experimental Data
| $\Delta H$ ($\pu{kJ/mol}$) |
|---|
| -18.12 |
| -8.41 |
| -38.07 |
