SDS Volume (4097)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Stiel, L. I.; Harnish, D. F.; AIChE J. 22, 117-122 (1976).
Variables:
Room Temp: 408 - 503 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
Solubility in the limit of infinite dilution ($p \to 0$) was determined by means of inverse gas chromatography. PS was coated on Fluoropak-80 support. Polymer content was in the range 4.8 % to 13.1 % in the columns having the length 24-71 m. The correction for pressure drop in a column was introduced.
Source and Purity of Materials:
- Molecular mass, $M_{\rm{n}}$ of PS = 110 000 - 115 000.
Estimated Errors:
Ambient temperature: 1 K.
Mass concentration (m/v) (1): 10%.
Components:
- Propane, $\ce{ C3H8 }$; [74-98-6] NIST WebBook
- Chloromethane, $\ce{ CH3Cl }$; [74-87-3] NIST WebBook
- 2-Methylpropane, $\ce{ C4H10 }$; [75-28-5] NIST WebBook
- Butane, $\ce{ C4H10 }$; [106-97-8] NIST WebBook
- 2,2-Dimethylpropane, $\ce{ C5H12 }$; [463-82-1] NIST WebBook
- Chlorodifluoromethane, $\ce{ CHClF2 }$; [75-45-6] NIST WebBook
- Trichlorofluoromethane, $\ce{ CCl3F }$; [75-69-4] NIST WebBook
- Polystyrene (PS), $\ce{ (C8H8)n }$; [9003-53-6] NIST WebBook
Experimental Data
Infinite dilution solubility coefficients S/(cm3(STP)/g atm)
| $T$ ($\pu{K}$) | $S$ ($\pu{cm3(g) g-1(s) atm-1}$) |
|---|---|
| 408 | 3.85 |
| 408 | 1.12 |
| 408 | 0.94 |
| 408 | 2.01 |
| 408 | - |
| 408 | 0.90 |
| 408 | - |
| 423 | 3.02 |
| 423 | 0.94 |
| 423 | 0.81 |
| 423 | 1.65 |
| 423 | 1.70 |
| 423 | 0.78 |
| 423 | 1.20 |
| 448 | 2.09 |
| 448 | 0.70 |
| 448 | 0.64 |
| 448 | 1.20 |
| 448 | 1.30 |
| 448 | 0.62 |
| 448 | 0.86 |
| 473 | 1.55 |
| 473 | 0.56 |
| 473 | 0.53 |
| 473 | - |
| 473 | - |
| 473 | 0.51 |
| 473 | 0.65 |
| 498 | 1.17 |
| 498 | 0.45 |
| 498 | 0.44 |
| 498 | - |
| 498 | - |
| 498 | 0.43 |
| 498 | 0.52 |
