Preparation and properties of GC capillary column with hypercrosslinked stationary phase

Abstract

For the first time, highly porous hypercrosslinked polystyrene layer was synthesized within a gas chromatography capillary column and successfully deposited onto the capillary walls generating porous layer open-tubular capillary column.Elaborated three steps synthetic procedure provides tightly bonded porous polymeric layer and ensues complete elimination of particle shedding and the needs for particle traps. Due to highly developed surface area, porous layer opentubular column provides strong solute retention that is useful for the separation of various volatile solvents and light gas compounds including ethane, ethylene, ethyne. Aqueous injections will not harm the column.

Eco-Friendly Production of Hyper-Cross-Linked Polymers Using Mechanosynthesis and Bioresources: A Critical Review

“…(A) Capillary column with a bonded layer of hyper-cross-linked polystyrene . (B) Separation of n -alkanes C6–C10 and aromatic compounds on the HCP-derived column.…”

“…Although it mimicked the structure of the widely used poly­(trimethylsilylpropyne) quite well, a limited porous network was obtained, which could not perform as well as the aforementioned phase for light hydrocarbons. However, more recent studies by Kanateva et al . succeeded in preparing suitable and highly efficient HCPs for gas chromatography column (Figure A), using the same precursor as in the previous study, and which achieved high resolution for the separation of volatile compounds, such as ethane, ethene, and ethyne, and many others depending on the selected conditions, as can be seen in Figure B and C. In addition, this HCP exhibited high water resistance and thermal stability.…”

“…Solutes: 1, methane; 2, ethylene; 3, acetylene; 4, ethane; 5, propene; 6, propane + allene; 7, propine; 8, isobutene; 9, butadiene; and 10, n -butane . Reprinted with permission from ref . Copyright 2021, Wiley.…”