SDS Volume (3920)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Thuy, L.; Springer, J.; Colloid Polym. Sci. 266, 614 (1988).
Variables:
Room Temp:
298 - 338
$\pu{K}$
Pressure:
0.1 - 3.0
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
High pressure apparatus was employed including Sartorius microbalance (model 4436).
Source and Purity of Materials:
- PBTP: BASF (Ultradur B 2550). The granular degassed polymer was pressed into thin foil at 528 K and then quickly quenched in a mixture of ice, salt, and water. $\rho = \pu{1.283 g mL-1}$, degree of crystallinity about 19%, $T_{\rm{g}}$ = 316 K
Estimated Errors:
Ambient temperature: No information given.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Poly(butylene terephthalate) (PBTP), $\ce{ (C12H12O4)n }$; [24968-12-5] NIST WebBook
Experimental Data
Dual mode sorption parameters for carbon dioxide in PETP
| $T$ ($\pu{K}$) | $k_{\rm{D}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $C_{\rm{H}}^{\prime}$ ($\pu{cm3/cm3}$) | $b$ ($\pu{atm-1}$) |
|---|---|---|---|
| 298 | 0.48 | 7.70 | 0.18 |
| 308 | 0.42 | 5.55 | 0.17 |
| 318 | 0.37 | 3.70 | 0.16 |
| 328 | 0.34 | 1.67 | 0.15 |
| 338 | 0.29 | - | - |
None
