SDS Volume (4069)
Volume 70. Solubility of Gases in Glassy Polymers, p None
Original Measurements
Puleo, A. C.; Paul, D. R.; Wong, P. K.; Polymer 30, 1357-1366 (1989).
Variables:
Room Temp:
308
$\pu{K}$
Pressure:
0 - 2.2
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
The apparatus and procedure for sorption measuring were similar to those described in [1].
Source and Purity of Materials:
- PMP samples from Polyscience Co with different thermal history as well as the copolymers of PMP and 4-(3-butenyl) benzocyclobutane (BBC) were studied. Their properties are given in Table 3. Nothing on gas purity was indicated.
Estimated Errors:
Ambient temperature: No information given.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Methane, $\ce{ CH4 }$; [74-82-8] NIST WebBook
- Poly(4-methyl-1-pentene) (PMP), $\ce{ (C6H12)n }$; [25068-26-2] NIST WebBook
Experimental Data
Within the validity of two-phase model and independence of phase properties of the composition the following local solubility coefficients where found.
Table 2. Solubility coefficients kD/(cm3(STP)/cm3) atm in amorphous and crystalline phases of PMP
| $k_{\rm{D}}$ ($\pu{cm3(g) cm-3(s) atm-1}$) | Phase (s) () |
|---|---|
| 0.351 | Amorphous phase |
| 0.378 | Amorphous phase |
| 0.93 | Amorphous phase |
| 0.99 | Amorphous phase |
| 0.095 | Crystalline phase |
| 0.060 | Crystalline phase |
| 0.28 | Crystalline phase |
| 0.20 | Crystalline phase |
(*) Description of samples seen at continuation sheet.
