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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Polyimide from 3.3', 4.4'-Biphenyltetracaboxylic dianhydride (BPDA) and 4.4'-Oxydianiline (ODA) (Upilex-R)
Components:
(1) Polyimide from 3.3', 4.4'-Biphenyltetracaboxylic dianhydride (BPDA) and 4.4'-Oxydianiline (ODA) (Upilex-R); ; [26615-45-2]
NIST Chemistry WebBook
for detail
(2) Carbon dioxide; CO2; [124-38-9]
NIST Chemistry WebBook
for detail
Original Measurements:
K.I. Okamoto, K. Tanaka, H. Kita, A. Nakamura and Y. Kusuki, J. Poly. Sci., Part B: Polym. Phys. 27, 1221-1233 (1989). K.I. Okamoto, K. Tanaka, K. Yokoshi, K. Hidetoshi and A. Nakamura.
Variables:
Temperature = 308 K - 383 K
Pressure = 0-3.0 MPa
Prepared By:
Yu. P. Yampol'skii
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
Dual mode sorption parameters for CO2 in commercial and laboratory samples of BPDA-ODA polyimides
T/K
Henry's law constant, K [cm
3
(STP)/cm
3
atm]
Langmuir's parameter, C
H
[cm
3
(STP) cm
-3
]
Affinity Coefficient b [atm
-1
]
Remark(s)
308
0.596
12.0
0.478
Upilex-R
323
0.456
10.3
0.348
Upilex-R
353
0.335
5.9
0.252
Upilex-R
383
0.254
3.4
0.162
Upilex-R
323
0.609
17.9
0.392
1
353
0.449
10.6
0.236
1
353
0.316
11.0
0.167
1
383
0.327
7.0
0.140
1
353
0.267
4.7
0.216
2
Method/Apparatus/Procedure:
Apparatus and procedure of sorption measurement was similar to one described in ref. (1).
Source and Purity of Materials:
Films of the polymer prepared from BPDA and ODA in
p
-chlorphenol were cast from the same solvent, dried (373 K, 3 h.), immersed in ethanol, dried once more at 443 K for 20 h. (Sample 1). Sample 2 was prepared by annealing it at 543 K, 3 h. Commercial Upilex-R (Ube Industries) had
T
g
=558K, ρ = 1.402 g/cc. Sample 1 had the same
T
g
.
Estimated Errors:
References:
1
Koros, W.J.; Paul, D.R. J. Polym. Phys., Polym. Phys. Ed., 1976, 14, 1903.