SDS Volume (4092)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Raymond, P. C.; Paul, D. R.; J. Polym. Sci. B: Polym. Phys. 28, 2079-2102 (1990).
Variables:
Room Temp:
308
$\pu{K}$
Pressure:
0 - 2.5
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
Gas sorption measurement was performed using the same equipment and procedure as in [1]. Sorption isotherms for methane were obtained using polymer samples which had never been exposed to $\ce{CO2}$. The $\ce{CO2}$ isotherm was obtained using the samples that had been conditioned in $\ce{CO2}$ at 25 atm for 24 h.
Source and Purity of Materials:
- PS (Cosden Oil 550) $\rho = \pu{1.052 g mL-1}$, $T_{\rm{g}}$ = 373 K. No information on gas purity given.
References
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Methane, $\ce{ CH4 }$; [74-82-8] NIST WebBook
- Polystyrene (PS), $\ce{ (C8H8)n }$; [9003-53-6] NIST WebBook
Experimental Data
Table 1. Sorption C/(cm3(STP)/cm3) of methane and carbon dioxide in PS*
| $P$ ($\pu{atm}$) | $\pu{Sorption}$ (g2/100 g1) |
|---|---|
| 5 | 1.5 |
| 1E+1 | 2.6 |
| 15 | 3.6 |
| 2E+1 | 4.4 |
| 25 | 5.3 |
| 5 | 6.7 |
| 1E+1 | 11.1 |
| 15 | 14.6 |
| 2E+1 | 17.6 |
| 25 | 20.0 |
(*) Smoothed data taken from the plot by the compiler.
