Compilation - Argon with Nitrogen, Carbon dioxide, Methane and Poly(ethyl methacrylate) (PEMA) (IUPAC SDS Volume 70)
SDS Volume (4067)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Chiou, J. S.; Paul, D. R.; J. Membr. Sci. 45, 167 (1989).
Variables:
Room Temp:
298 - 318
$\pu{K}$
Pressure:
0 - 3.8
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
Sorption isotherms were measured by the pressure decay method using a dual volume sorption cell.
Source and Purity of Materials:
- PEMA: DuPont Co. (Elvacite 2042). $M_{\rm{w}}$ = 438 000, $T_{\rm{g}}$ = 342 K (DSC method).
Estimated Errors:
Ambient temperature: No information given.
Components:
- Various gases (x4), $\ce{ $\ce{Ar}$, $\ce{N2}$, $\ce{CO2}$ and $\ce{CH4}$ }$;
- Poly(ethyl methacrylate) (PEMA), $\ce{ (C6H802)n }$; [97-63-2] NIST WebBook
Experimental Data
Solubility coefficient for N2 at 308 K; 0.058 cm3(STP) cm-3 atm-1 (calculated by compiler).
Table 2. Sorption isotherms of methane in PEMA at 298 K (a) and 318 K (b) (The original data were represented graphically)
| $P$ ($\pu{MPa}$) | $\pu{Sorption}$ ($\pu{V_{1}/V_{2}}$) |
|---|---|
| 0.20 | 0.73 |
| 0.42 | 1.41 |
| 0.64 | 2.02 |
| 0.82 | 2.55 |
| 1.02 | 3.03 |
| 1.25 | 3.62 |
| 0.26 | 0.55 |
| 0.27 | 0.59 |
| 0.55 | 1.12 |
| 0.66 | 1.40 |
| 0.81 | 1.60 |
| 0.97 | 1.91 |
| 1.24 | 2.45 |
| 1.43 | 4.11 |
| 1.63 | 4.50 |
| 1.85 | 5.05 |
| 2.06 | 5.62 |
| 2.28 | 5.95 |
| 2.47 | 6.19 |
| 1.37 | 2.65 |
| 1.43 | 2.81 |
| 1.74 | 3.29 |
| 1.96 | 3.62 |
| 2.19 | 4.16 |
| 2.29 | 4.14 |
| 2.50 | 4.51 |
| 2.71 | 6.85 |
| 2.90 | 7.18 |
| 3.33 | 8.10 |
| 3.39 | 8.27 |
| 2.67 | 4.89 |
| 2.76 | 4.99 |
| 3.00 | 5.39 |
| 3.29 | 5.83 |
| 3.30 | 5.89 |
| 3.37 | 6.42 |
| 3.67 | 6.42 |
None
