Solubility of Blowing Agents HCFC 142b, HFC 134a, HFC 125 and Isopropanol in Polystyrene
- 1 May 1998
- journal article
- research article
- Published by SAGE Publications in Journal of Cellular Plastics
- Vol. 34 (3) , 219-230
- https://doi.org/10.1177/0021955x9803400303
Abstract
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°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.Keywords
This publication has 4 references indexed in Scilit:
- Solubility of gases in polymersPure and Applied Chemistry, 1990
- Physical Properties of Blowing Agent Polymer Systems—I. Solubility of Fluorocarbon Blowing Agents in Thermoplastic ResinsJournal of Cellular Plastics, 1986
- Solubility behaviour of polystyrene: thermodynamic studies using gas chromatographyPolymer, 1980
- Compressibility factors and virial coefficients of 2-propanolJournal of Chemical & Engineering Data, 1967