Critical Evaluation: Hydrocarbon gases (C1-C4) with Poly(vinyltrimethyl silane) (PVTMS) (IUPAC SDS Volume 70)
The solubility of gaseous hydrocarbons in PVTMS has been measured using three different techniques: volumetric,1 gravimetric,2,4 and inverse gas chromatography.5-8 The data for the following gases are available: methane [74-82-8],1 acetylene [74~86.2],2-4,8,9 ethylene [74-85-1],2-5,7-9 ethane {74-84-0],2-5,7-9 propadiene [463-49-0],2-4,8,9 propyne [74-99-7],2-4,8,9 propene [115-07-1],2-5,7-9 propane [74-98-6],2,9 n-butane [106-97-8].5,7 Except propane and butane for which the dual mode sorption isotherms have been obtained,4,6 the solubility of all other gases was measured in the range of pressure corresponding to the linear part of the sorption isotherm, i.e., the solubility coefficients have been reported. There is a general tendency for the solubility to increase with the critical temperature of gases, the variation of solubility with critical temperature is shown below. Values of critical temperature were taken from Ref. 10.

Correlation of the solubility coefficients S with critical temperature Tc/K of hydrocarbons
C T (K) D ln(S)
190.5 -1.86
309.0 -1.48
309.0 -1.6
282.6 -1.33
282.6 -1.44
282.6 -1.44
305.4 -1.15
305.4 -1.14
305.4 -1.14
393.0 -5 x 10-1
393.0 -5 x 10-1
401.0 -5 x 10-1
401.0 -5 x 10-1
364.9 -5 x 10-1
364.9 -6 x 10-1
364.9 -6 x 10-1
379.9 -6 x 10-1
379.9 -4 x 10-1
379.9 -4 x 10-1
427.1 -5 x 10-2

References:

1 Davydova, M. B.; Yampol'skii, Yu. P.; Gladkova, N. K.; Durgaryan, S. G.; Vysokomol. Soedin.; Ser. A 30, 554-559 (1988).
2 Kaliuzhnyi, N. E.; Yampol'skii, Yu. P.; Durgaryan, S. G.; Nametkin, N. S.; Dokl. Akad. Nauk USSR 265, 1170-1173 (1982).
3 Volkov, V. V.; Durgaryan, S. G.; Novitskii E. G.; Nametkin, N. S.; Dokl. Akad. Nauk USSR 232, 838 (1977).
4 Volkov, V. V.; Ph.D. Dissertation, TIPS, Moscow, Russia, 1979.
5 Stull, D. R.; Westrun, E. F.; Sinke, G. C.; The Chemical Thermodynamics of Organic Compounds (Wiley, New York, 1969).
6 Yampol'skii, Yu. P.; Kaliuzhnyi, N. E.; Durgaryan, S. G.; Macromolecules 19, 846 (1986).
7 Volkov, V. V.; Bokarev, A. K.; Durgaryan, S. G.; Nametkin, N. S.; Dokl. Akad. Nauk USSR 282, 641 (1985).
8 Volkov, V. V.; Nametkin, N. S.; Novitskii, E. G.; Durgaryan, S. G.; Vysokomol. Soedin. Ser. A 21, 920-931 (1979).
9 Davydova, M. B.; Yampol'skii, Yu. P.; Durgaryan, S. G.; Vysokomol. Soedin. : Ser. A 30, 1430 (1988).