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1616866 
Journal Article 
Solubility of blowing agents HCFC 142b, HFC 134a, HFC 125 and isopropanol in polystyrene 
Daigneault, LE; Handa, YP; Wong, B; Caron, LM 
1998 
Yes 
Journal of Cellular Plastics
ISSN: 0021-955X
EISSN: 1530-7999 
34 
3 
219-+ 
WOS:000073563300002 
The vapor-liquid equilibria of HCFC 142b, HFC 134a, HFC 125
and isopropanol in polystyrene were determined in a closed high pressure vessel at temperatures
up to 220 degrees C. Complete solubility maps are presented for each blowing agent, including
conditions for phase separation in the polystyrene phase. In order of decreasing solubility, the
blowing agents rank isopropanol > HCFC 142b > HFC 134a > HFC 125. In the cases of isopropanol and
HFC 134a, some solubility results obtained by the vapor pressure method and those using a high-
pressure electrobalance are compared. 
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