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Polymer Bulletin

, Volume 14, Issue 3–4, pp 379–386 | Cite as

Thermodynamics of polymer systems

5. Sorption and mixing properties of selected solutes and solubility parameters of atactic poly(styrene) by gas chromatography
  • H. Gräter
  • R. H. Schuster
  • H. -J. Cantow
Thermodynamics

Summary

Gas chromatography has been employed to determine partial molar free energies of sorption, ΔC1s, as well as partial molar free energies of mixing, ΔC1, of atactic poly(styrene) with linear and branched alkanes (C6-C9), alkenes (C8), cyclohexane and alkylbenzenes (Ph-H to PhC6H13) within the temperature range from 403 to 463 K. The influence of nature and constitution of the solute molecule on sorption and mixing properties in poly(styrene) are discussed in terms of the competing group contributions of the components. Knowledge of this influence may be transduced to understand polymer-polymer compatibility. The cohesive energy density concept has been used to calculate the infinite dilution solubility parameter for the polymer, with the aid of ΔG 1 . From the high temperature range the HILDEBRAND parameter δ2 was extrapolated to 298 K. The value obtained, 9.14, indicates that gas chromatography is an promising alternative to the conventional methods for determination of the solubility parameter for polymers.

Keywords

Energy Density Alkane Styrene Cyclohexane Polymer System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • H. Gräter
    • 1
  • R. H. Schuster
    • 1
  • H. -J. Cantow
    • 1
  1. 1.Institut für Makromolekulare Chemie der Universität Freiburg, Hermann-Staudinger-HausFreiburgGermany

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