SDS Volume (4084)
Volume 70. Solubility of Gases in Glassy Polymers, p 1296
Original Measurements
Variables:
Room Temp:
298 - 348
$\pu{K}$
Pressure:
0 - 26
$\pu{kPa}$
Prepared by:
Method/Apparatus/Procedure:
The solubility has been measured by a volumetric method. Measurements were performed using an apparatus similar to that employed by Meares [1].
Source and Purity of Materials:
- Anionically polymerized PS sample having $M_{\rm{w}}$ = 106000 was used.
$\ce{He}$, $\ce{Ar}$, $\ce{Kr}$, $\ce{Xe}$ and $\ce{N2}$ were obtained from Takachiho Kagaku Kogyo, Co. Ltd., and the purity of each gas exceeded 99.995% by volume.
References
Components:
-
Helium $\ce{ He }$
[7440-59-7];
NIST WebBook
Argon $\ce{ Ar }$ [7440-37-1]; NIST WebBook
Krypton $\ce{ Kr }$ [7439-90-9]; NIST WebBook
Xenon $\ce{ Xe }$ [7440-63-3]; NIST WebBook
Nitrogen $\ce{ N2 }$ [7727-37-9]; NIST WebBook - Polystyrene (PS) $\ce{ (C8H8)n }$ [9003-53-6]; NIST WebBook
Experimental Data
Equilibrium solubility coefficient at 298 K and heats of solution various gases (1) with polystyrene (2)
| Various gases (x5) | $S$ ($\pu{cm3(STP) cm-3 cmHg-1}$) | $\Delta H$ ($\pu{kJ/mol}$) |
|---|---|---|
Helium
(
 )
|
1.7 x 10-4 | - |
|
Argon
(
)
|
5.03 x 10-3 | -13.6 |
|
Krypton
(
)
|
0.0178 | -17.5 |
|
Xenon
(
)
|
0.0890 | -23.2 |
|
Nitrogen
(
)
|
2.29 x 10-3 | -13.8 |