IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Poly(y-benzyl-L-glutamate) (PBLG)
Components:
   (1) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (2) Poly(y-benzyl-L-glutamate) (PBLG); ; [25014-27-1]  NIST Chemistry WebBook for detail
Original Measurements:
   Y. Oohachi, H. Hamano, T. Yoshida, Y. Tsujita and A. Takizawa, J. Appl. Polym. Sci. 22, 1469 (1978). T. Yoshida, A. Takizawa and Y. Ysujita, J. Appl. Polym. Sci. 22, 279 (1978).

 Variables:
   Temperature = 293 K - 308 K
   Pressure = 6.6-52.5 kPa

 Prepared By:
   Yu. P. Yampol'skii

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
    View Figure 1 for this Evaluation

Method/Apparatus/Procedure:
   Cahn electrobalance was used to measure sorption.

 Source and Purity of Materials:
   PBLG: prepared by benzylation of L-glutamic acid with subsequent polymerization. The degree of polymerization was always 1200, except the sample cast from ethylene dichloride where it was equal to 550. Heat treatment was performed at 413 K for several hours.

 Estimated Errors:
   Solubility: Weight determination accuracy: ±10 rug for 50—100 rug samples. Precision in: T: ±0.5 K.
   Temperature: Precision in T: ± 0.5 K.

 References:
   1T. H. Hildebrand and R. Scott, The Solubility of Nonelectrolytes (New York, 1964).
   2T. M. Prausnitz, J. Phys. Chem. 66, 640 (1962).