IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Argon with Nitrogen, Carbon dioxide, Methane, Poly(methyl methacrylate) (PMMA) and Poly(vinylidene fluoride) (PVF2)

Components:
   (1) Poly(methyl methacrylate) (PMMA); ; [9011-14-7]  NIST Chemistry WebBook for detail
   (2) Argon with Nitrogen, Carbon dioxide, Methane; Ar, N2, CO2, CH4; [7440-37-1, 7727-37-9, 124-38-9, 74-82-8]  NIST Chemistry WebBook for detail
   (3) Poly(vinylidene fluoride) (PVF2); ; [24937-79-9]  NIST Chemistry WebBook for detail

Original Measurements:
   J.S. Chiou and D.R. Paul, J. Appl. Sci. 32, 4793 (1986).

Variables:
   Temperature = 308 K
   Pressure = 0-2.7 MPa (0-27 atm)
   Concentration = mass % PVF = 0-100

Prepared By:
   Yu. P. Yampol'skii

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
  
Table 1. Solubility coefficients of various gases in PVF2 at 308 K
Chemical NameKeunen coefficient, S [cm3/cm3 atm]
Ar0.0350
N20.0206
CH40.0488
Table 2. Dual mode sorption parameters for various gases in PMMA at 308 K
T/KChemical NameHenry's law constant, K [cm3(STP)/cm3 atm]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]
Ar0.11501.4500.0480
N20.07370.8140.0301
CH40.18203.6200.0560
Table 3. Dual mode sorption parameters for argon in extruded PMMA/PVF2 blends at 308 K
Henry's law constant, K [cm3(STP)/cm3 atm]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]Ka [cm3(STP)/cm3 atm]Remark(s)
0.03500.0779100 [PVF(2) mass %]
0.04800.085790
0.05680.084980
0.07420.081760
0.08930.089340
0.10400.9820.03450.104020
0.11501.4500.04800.11500
View Figure 1 for this Evaluation

View Figure 2 for this Evaluation

View Figure 3 for this Evaluation

Notes:
   Table 3    alpha is the crystallinity of PVF2 in the blend.

Method/Apparatus/Procedure:
   The apparatus and procedure were the name as described in Ref. 1.

Source and Purity of Materials:
   PMMA: Rohtn and Hess (Plexiglas V(81 1)). glass transition temp. 378 K, completely amorphous. PVF2: Pennwalt (Kynar 460N), crystallinity 60 %, melting point 433 K. Blends: films prepared by extrusion. Miscible blends were studied.

Estimated Errors:

   Temperature: No information given.

References:
   1W. J. Koros, D. P.. Paul, and A. A. Rocha, J. Polym. Sci., Polym. Plays. Ed. 30, 2633 (1985).