Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Polystyrene,
(C8H8)n; [9003-53-6]
NIST WebBook
(3) Poly(vinylmethyl ether),
(C3H6O)n; [9003-09-2]
NIST WebBook
Original Measurements
Hachisuka, H.; Sato, H.; Tsujita, Y.; Takizawa, A.; Kinoshita, T.; Polym. J. 21, 417-424 (1989).
Variables:
Ambient temperature: 298 K
Pressure: 0 - 1.33 MPa
Prepared by:
Method/Apparatus/Procedure:
Sorption measurement was carried out using electromicrobalance Cahn 2000. The correction for buoyancy was introduced.
Source and Purity of Materials:
- Type PS,% PVME,% Tg , K
Single phase 75 25 315.0
same 50 50 262.9
same 20 80 248.6
Phase separated 83 17 321.2
(75/25) 21 79 249.2
Phase separated 73 27 301.2
(50/50) 31 69 253.2
Phase separated 74 26 308.6
(20/80) 19 81 248.0
CO2 purity >99.99%.
Experimental Values:
Dual mode sorption parameters for CO2 in PS/PVME blends
| H (cm3(STP)/cm3 cmHg-1) | C'H (cm3/cm3) | b (cm Hg) | Comptot | Phase (s) |
|---|---|---|---|---|
| 1.12 x 10-2 | 4.1 | 2.36 x 10-3 | 100/0 | Polystyrene |
| 1.41 x 10-2 | 1.5 | 1.45 x 10-3 | 75/25 | Single phase blend |
| 2.01 x 10-2 | - | - | 50/50 | Single phase blend |
| 2.62 x 10-2 | - | - | 20/80 | Single phase blend |
| 1.49 x 10-2 | 2.4 | 2.76 x 10-3 | 75/25 | Phase separated blend |
| 2.05 x 10-2 | 4 x 10-1 | 4.73 x 10-3 | 50/50 | Phase separated blend |
| 2.93 x 10-2 | 1.1 | 3.95 x 10-3 | 20/80 | Phase separated blend |
| 4.00 x 10-2 | - | - | 0/100 |
