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Updated: Feb 16, 2026

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
Extrathermodynamic parameters of sorption of light hydrocarbons on stationary phases prepared from tricyclononene
A A Korolev1, V E Shiryaeva1, T P Popova1
1A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Lenin Av. 29, Russian Federation.
Abstract:
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.
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