Abstract
Capillary columns with previously or in situ synthesized super-crosslinked polystyrene phases are prepared. It has been shown that columns with stationary phases based on presynthesized hypercrosslinked polystyrenes, spherical monodisperse particles, or “nano-sponges,” despite their microporous structure, show insufficient kinetic efficiency and selectivity in the separation of light hydrocarbons. Higher kinetic efficiency was observed in columns where the hypercrosslinked polystyrene phase was synthesized directly in the column, although the porosity structure of this phase remains unknown. All columns with hypercrosslinked polystyrene stationary phase have good thermal stability, with no observed chemical destruction and physical aging at temperatures up to 250°C.
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