SDS Volume (3949)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Takishima, S.; Nakamura, K.; Sasaki, M.; Masuoka, H.; Sekiyu Gakkaishi 33, 332-336 (1990).
Variables:
Room Temp:
313.2 and 323.2
$\pu{K}$
Pressure:
0.898 - 8.755
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
Measurements of the solubility were made using a pressure decay method. The apparatus was similar to one designed by Koros [1]. Pressure was measured by a semiconductor sensor PX-1A (Tsukasu Sokken). The correction for compressibility of gas phase was introduced.
Source and Purity of Materials:
- PVA (Aldrich Chemical Co) had "viscosity" average molecular weight 158,000 and $T{\rm{g}}$ = 303 K. The purity of carbon dioxide (Chugoku Teisan) was 99.9%.
References
1 Koros, W. J.; Ph.D. Dissertation, The University of Texas at Austin, Austin, TX, 1977.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Poly(vinyl acetate) (PVA), $\ce{ (C4H6O2)n }$; [9003-20-7] NIST WebBook
Experimental Data
Solubility of carbon dioxide in PVA expressed as mass fractions w
| $T$ ($\pu{K}$) | w1 | $P$ ($\pu{MPa}$) |
|---|---|---|
| 313.2 | 0.0416 | 1.258 |
| 313.2 | 0.0532 | 1.449 |
| 313.2 | 0.0936 | 2.650 |
| 313.2 | 0.1264 | 3.467 |
| 313.2 | 0.1429 | 3.846 |
| 313.2 | 0.1723 | 4.583 |
| 313.2 | 0.2123 | 5.659 |
| 313.2 | 0.2786 | 6.885 |
| 313.2 | 0.3909 | 8.755 |
| 323.2 | 0.0254 | 0.898 |
| 323.2 | 0.0485 | 1.819 |
| 323.2 | 0.0533 | 1.906 |
| 323.2 | 0.0978 | 3.309 |
| 323.2 | 0.1397 | 4.698 |
| 323.2 | 0.1696 | 5.655 |
| 323.2 | 0.2073 | 6.519 |
| 323.2 | 0.2668 | 7.861 |
