IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Poly(butylene terephthalate) (PBTP)
Components:
   (1) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (2) Poly(butylene terephthalate) (PBTP); ; []  NIST Chemistry WebBook for detail
Original Measurements:
   L. Thuy and J. Springer, Colloid Polym. Sci. 266, 614 (1988).

 Variables:
   Temperature = 298 K - 338 K
   Pressure = 0.1-3.0 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 carbon dioxide in PETP
T/KHenry's law constant, K [cm3(STP)/cm3 atm]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]
2980.487.700.18
3080.425.550.17
3180.373.700.16
3280.341.670.15
3380.29——
 View Figure 1 for this Evaluation

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. Density 1.283 g/cm3 degree of crystallinity about 19 %, glass transition temperature 316 K

 Estimated Errors:

   Temperature: No information given.