IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Polycarbonate (PC) and Copolyester (Kodar A-150)
Components:
   (1) Polycarbonate (PC); ; [24936-68-3]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Copolyester (Kodar A-150); ; []  NIST Chemistry WebBook for detail
Original Measurements:
   P. Masi, D.R. Paul and J.W. Barlow, J. Polym. Sci., Polym. Phys. Ed. 20, 15 (1982).

 Variables:
   Temperature = 308 K
   Pressure = 0-2.1 MPa

 Prepared By:
   A.K. Bokarev

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
Table 1. Dual mode sorption parameters for CO2 in polycarbonate-copolyester blends at 308 K (taken from the plot by the compiler)
Henry's law constant, K [cm3(STP)/cm3 atm]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]Remark(s)
0.6449.40.29[PC mass%] 0
0.61313.10.2325
0.61313.80.2850
0.65518.00.2375
0.68619.20.26100
Table 2. Sorption isotherms of carbon dioxide in polycarbonate-copolyester blends at 308 K
Pressure [MPa]Sorption [(V*1(STP)/V23)]Remark(s)
0.092.57PC 0 mass %
0.133.34PC 0 mass %
0.174.05PC 0 mass %
0.214.88PC 0 mass %
0.316.18PC 0 mass %
0.438.01PC 0 mass %
0.599.71PC 0 mass %
0.7110.75PC 0 mass %
0.9212.86PC 0 mass %
0.9412.49PC 0 mass %
1.0513.78PC 0 mass %
1.2515.28PC 0 mass %
1.2815.76PC 0 mass %
1.3516.16PC 0 mass %
1.4717.39PC 0 mass %
1.6718.47PC 0 mass %
1.7419.29PC 0 mass %
1.7518.68PC 0 mass %
1.8619.67PC 0 mass %
2.0821.11PC 0 mass %
0.428.50PC 25 mass %
0.519.73PC 25 mass %
0.5610.99PC 25 mass %
0.6011.03PC 25 mass %
0.7312.68PC 25 mass %
1.0115.61PC 25 mass %
1.1116.42PC 25 mass %
1.2117.29PC 25 mass %
1.3617.66PC 25 mass %
1.3418.09PC 25 mass %
1.4819.01PC 25 mass %
1.5119.73PC 25 mass %
1.5819.46PC 25 mass %
1.6620.40PC 25 mass %
1.9622.35PC 25 mass %
1.7921.75PC 25 mass %
1.9022.13PC 25 mass %
0.328.53PC 50 mass %
0.4210.06PC 50 mass %
0.4911.13PC 50 mass %
0.7313.94PC 50 mass %
0.8414.94PC 50 mass %
1.0716.97PC 50 mass %
1.1717.79PC 50 mass %
1.2618.66PC 50 mass %
1.4319.93PC 50 mass %
1.4619.99PC 50 mass %
1.5820.97PC 50 mass %
1.7222.01PC 50 mass %
1.7922.29PC 50 mass %
1.9123.10PC 50 mass %
2.0224.15PC 50 mass %
0.299.26PC 75 mass %
0.4011.22PC 75 mass %
0.5313.23PC 75 mass %
0.7215.52PC 75 mass %
0.8416.99PC 75 mass %
1.0219.10PC 75 mass %
1.0819.87PC 75 mass %
1.2320.97PC 75 mass %
1.2421.45PC 75 mass %
1.2921.73PC 75 mass %
1.3121.96PC 75 mass %
1.4122.60PC 75 mass %
1.4723.54PC 75 mass %
1.5724.36PC 75 mass %
1.7625.68PC 75 mass %
1.8026.09PC 75 mass %
1.8326.14PC 75 mass %
1.9026.72PC 75 mass %
2.0327.28PC 75 mass %
2.0628.36PC 75 mass %
2.1228.76PC 75 mass %
0.115.22PC 100 mass %
0.187.49PC 100 mass %
0.4412.89PC 100 mass %
0.5414.97PC 100 mass %
0.7417.38PC 100 mass %
0.8018.69PC 100 mass %
0.9720.33PC 100 mass %
1.1221.61PC 100 mass %
1.2122.66PC 100 mass %
1.2923.42PC 100 mass %
1.4924.68PC 100 mass %
1.5225.40PC 100 mass %
1.7127.21PC 100 mass %
1.8428.19PC 100 mass %
1.9329.61PC 100 mass %
2.0029.10PC 100 mass %
2.0930.16PC 100 mass %
 Method/Apparatus/Procedure:
   Sorption was measured using a pressure decay method described in Ref. 1. The specimens were exposed to CO2 at 20 atm for 1 day.

 Source and Purity of Materials:
   Copolyester (Kodar A-150): Products, Inc. contained the units of isophthalic and terephthalic acid in a ratio 20/80; Mn 22 000, glass transition temperature 360 K.
PC (Bisphenol A Polycarbonate): Lexan 131-111 General Electric Co., Mn=13 300, Mw=34 200, glass transition temperature 421 K. The blends were produced by extrusion at 293 K (above Tm of the copolyester).

 Estimated Errors:

   Temperature: No information given.

 References:
   1W. J. Koros, D. R. Paul, and A. A. Rocha, J. Pslym. Sci., Polym. Phys. Ed. 14, 687 (1976).