Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(1) Methane,
CH4; [74-82-8]
NIST WebBook
(2) Polystyrene,
(C8H8)n; [9003-53-6]
NIST WebBook
(3) Tetramethyl bisphenol A Polycarbonate (TMPC),
None; [poly-020]
NIST WebBook
Original Measurements
Muruganandam, N.; Paul, D. R.; J. Polym. Sci. Part B: Polym. Phys. 25, 2315 (1987).
Variables:
Ambient temperature: 308 K
Pressure: 0 - 2.0 MPa
Prepared by:
Method/Apparatus/Procedure:
The apparatus and procedure are described in Ref. 1. The films previous had been exposed to carbon dioxide at 20 atm for 24 h.
Source and Purity of Materials:
- PS: Cosden Oil and Chemical Co., M,, = 100 000, Mw = 350 000, glass transition temp. 375 K. TMPC: Bayer AG, glass transition temp. 466 K. Blends: glass transition temperatures varied monotonously in the range of the value characteristic
- PS: Cosden Oil and Chemical CO., Mn = 100 000, Mw = 350 000, glass transition temp. 375 K.
TMPC: Bayer AG, glass transition temp. 466 K.
Blends: glass transition temperatures varied monotonously in the range of the values characteristic for pure components.
Estimated Errors:
Ambient temperature: No information given.
Ambient temperature: No information given.
References
1 Koros, W. J.; Chan, A. H.; Paul, D. R.; J. Membr. Sci. 2, 165 (1977).
Experimental Values:
Table 1. Dual mode sorption parameters for carbon dioxide in TMPC/PS blends at 308 K
| H (cm3(g) cm-3(s) atm-1) | C'H (cm3/cm3) | b (atm-1) |
|---|---|---|
| 5.50 x 10-1 | 9.44 | 1.77 x 10-1 |
| 6.04 x 10-1 | 11.53 | 1.98 x 10-1 |
| 5.79 x 10-1 | 15.37 | 1.86 x 10-1 |
| 6.67 x 10-1 | 19.05 | 2.07 x 10-1 |
| 8.79 x 10-1 | 20.49 | 2.75 x 10-1 |
| 1.011 | 27.66 | 2.83 x 10-1 |
Table 2. Dual mode sorption parameters for methane in TMPC/PS blends at 308 K
| H (cm3(g) cm-3(s) atm-1) | C'H (cm3/cm3) | b (atm-1) |
|---|---|---|
| 1.09 x 10-1 | 6.99 | 6.8 x 10-2 |
| 2.52 x 10-1 | 3.85 | 1.26 x 10-1 |
| 1.92 x 10-1 | 6.8 | 9.4 x 10-2 |
| 2.30 x 10-1 | 8.9 | 9.0 x 10-2 |
| 2.37 x 10-1 | 12.72 | 8.6 x 10-2 |
| 2.44 x 10-1 | 15.34 | 1.00 x 10-1 |
None
None
