Extrapolation of solubility data of monomeric, oligomeric and polymeric hydrocarbons

✍ Scribed by Heinrich Horacek

• Book ID: 102940298
• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 999 KB
• Volume: 195
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1994.021951009

✦ Synopsis

Abstract

Solubility data of hydrocarbons in poly(propylene) were determined by means of inverse gas chromatography and vapour pressure measurements. For better extrapolation, these data were arranged in solubilities of monomers in monomers, in dimers, in oligomers and in polymers as well as in solubilities of monomers, dimers and oligomers in polymers. The results indicate that cyclic compounds are better solvents for polymers than linear ones, because both are more similar in terms of end‐groups. From a theoretical point of view, the extrapolation of solubilities of monomers in polymers to polymers in polymers leads from the Bunsen solubility to the ideal rubber elasticity. The extrapolation of solubilities of monomers in monomers to monomers in their polymers conduces from the ideal gas law or the solubility in itself to the Henry law. The knowledge of solubility is important for the physical foaming process where very fine cell structures are promoted by supercritical gases. Solubility data of propene in hydrocarbons and in poly(propylene) support the thermodynamics of poly(propylene) manufacturing: the heat of solution for propane in poly(propylene) was determined to be 14,7 kJ/mol.