Extrathermodynamic parameters of sorption of light hydrocarbons on stationary phases prepared from tricyclononene polymers

•New polymeric stationary phase for GC.•Membrane polymers.•Effect of monomer structure on thermodynamic properties of polymeric stationary phases. Enthalpy and entropy of adsorption of polar and non-polar solutes were measured by chromatographic technique for new stationary phases prepared from memb...

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Bibliographic Details
Published in:Journal of Chromatography A 2018-01, Vol.1533, p.174-179
Main Authors: Korolev, A.A., Shiryaeva, V.E., Popova, T.P., Bermeshev, M.V., Kanateva, A.Yu, Kurganov, A.A.
Format: Article
Language:English
Subjects:
Compensation plot
Enthalpy
Entropy
Polymeric stationary phases
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Summary:•New polymeric stationary phase for GC.•Membrane polymers.•Effect of monomer structure on thermodynamic properties of polymeric stationary phases. Enthalpy and entropy of adsorption of polar and non-polar solutes were measured by chromatographic technique for new stationary phases prepared from membrane polymers based on tricyclonones. Data obtained within temperature interval from 40 to 150 °C were used to create extrathermodynamic dependences (compensation plots, dependences of enthalpy and entropy changes on solute carbon number). Compensation plots were very similar for all the stationary phases indicating similar adsorption mechanisms. The difference between the stationary phases was elucidated using dependences of enthalpy and entropy changes on solute carbon number. Higher retentivity of the stationary phase based on polymer 1 was explained by higher both enthalpy and entropy of solute adsorption on the stationary phase.
ISSN:0021-9673
DOI:10.1016/j.chroma.2017.12.039