Determination of Thermodynamic Properties of Poly(4-tert-Butylstyrene) by Inverse Gas Chromatography

İsmet Kaya; Hasan Mart

doi:10.1515/polyeng-1999-0305

Article

Determination of Thermodynamic Properties of Poly(4-tert-Butylstyrene) by Inverse Gas Chromatography

İsmet Kaya and Hasan Mart

Published/Copyright: October 11, 2016

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From the journal Journal of Polymer Engineering Volume 19 Issue 3

Abstract

Some thermodynamic quantities were obtained for the interactions of poly (4-tert-butylstyrene) with alcohols, ketones, acetates, aromatics and alkanes by the inverse gas chromatography method in the temperature range of 343-463 K. The specific retention volumes (Vg°), the adsorption enthalpy of probes (ΔH₂), the partial molar free energy of sorption (ΔG₁^S), the enthalpy of sorption (ΔH₁^S), the entropy of sorption (ΔS₁^S), the weight fraction activity coefficients of solute probes at infinite dilution (Ω₁^∞), and the Flory- Huggins thermodynamic interaction parameters (χ^∞₁₂) between polymer and solvents are given. The partial molar free energy (ΔG₁^∞, the partial molar heat of mixing (ΔH₁^∞ at infinite dilution and the solubility parameters of the polymer (δ₂) were calculated. The solubility parameter of poly (4-tert-butyl- styrene) was determined from either the slope or intercept as 7.25 (cal/cm³)^0,5 and 7.00 (cal/cm³)^0,5 at 180°C, respectively.

Keywords: Poly (4-tert-butylstyrene); inverse gas chromatography; thermodynamic properties; polymer-solvent interactions

Published Online: 2016-10-11

Published in Print: 1999-3-1

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Articles in the same Issue

https://doi.org/10.1515/polyeng-1999-0305

Keywords for this article

Poly (4-tert-butylstyrene); inverse gas chromatography; thermodynamic properties; polymer-solvent interactions