SDS Volume
Volume 70. Solubility of Gases in Glassy Polymers, p None
Source Publication
Masi, P.; Paul, D. R.; Barlow, J. W.; J. Polym. Sci. B: Polym. Phys. 20, 15 (1982).
Conditions:
Room Temp:
308
$\pu{K}$
Pressure:
0 - 2.1
$\pu{MPa}$
Compiler:
Methodology:
Sorption was measured using a pressure decay method described in [1]. The specimens were exposed to $\ce{CO2}$ at 20 atm for one day.
Sample Information:
- Copolyester (Kodar A-150): Products, Inc. contained the units of isophthalic and terephthalic acid in a ratio 20/80; $M_{\rm{n}}$ = 22 000, $T_{\rm{g}}$ = 360 K.
PC (Bisphenol A Polycarbonate): Lexan 131-111 General Electric Co., $M_{\rm{n}}$ = 13 300, $M_{\rm{w}}$ = 34 200, $T_{\rm{g}}$ = 421 K. The blends were produced by extrusion at 293 K (above $T_{\rm{m}}$ of the copolyester).
Measurement Errors:
Ambient temperature: No information given.
Methodology Citation
1 Koros, W. J.; Paul, D. R.; Rocha, A. A.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 687.
System Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Polycarbonate (PC), $\ce{ (C16H18O5)n }$; [25037-45-0] NIST WebBook
- Poly(1,4-cyclohexylene-dimethylene terephthalate/isophthalate), [26124-27-6] NIST WebBook
Experimental Data
| $k_{\rm{H}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $C_{\rm{H}}^{\prime}$ ($\pu{cm3/cm3}$) | $b$ ($\pu{atm-1}$) |
|---|---|---|
| 0.644 | 9.4 | 0.29 |
| 0.613 | 13.1 | 0.23 |
| 0.613 | 13.8 | 0.28 |
| 0.655 | 18.0 | 0.23 |
| 0.686 | 19.2 | 0.26 |
