Abstract: The invention relates to the polar polymeric sorbent applicable in gas and liquid chromatography, which is based on glycidyl esters. The sorbent is formed by the macroporous copolymer containing 3-70% of polymerized monomeric units with epoxy groups, e.g. glycidyl methacrylate or glycidyl acrylate units, and 97-30% of a crosslinking agent, e.g. alkylene dimethacrylate, alkylene diacrylate, hydroxyalkylene dimethacrylate, hydroxyalkylene diacrylate (alkylene containing 1-6 C atoms), or divinylbenzene. The sorbent may further contain up to 30% of polymerized monomeric units containing nitrile groups, e.g. acrylonitrile and methacrylonitrile units. The polarity of sorbent can be further modified, according to the invention, by the reaction with various nucleophilic agents, e.g. water, alcohols, carboxylic acids and their derivatives, ammonia, amines, thioalcohols, acrylonitrile.

Abstract: The invention relates to macroporous polymeric sorbents prepared by ternary copolymerization of polar monomers, namely hydroxyalkyl acrylates and methacrylates (hydroxyalkyl C.sub.1-6), in the amount of 1 - 70 wt.%, with 30 - 90 wt.% of nonpolar comonomers, namely alkyl acrylates and methacrylates (alkyl C.sub.1-18), and 20 - 80 wt.% of crosslinking agents, namely alkylene diacrylates and dimethacrylates (alkylene C.sub.1-6). The sorbents were prepared by the suspension copolymerization in the presence of inert organic solvents and surfactants in the single step without further chemical modification and their polarity was controlled in a broad region. They are especially suitable for gas-chromatographic separation of organic compounds, as hydrocarbons, alcohols, organic acids and nitrogen-containing heterocyclic compounds. Their preparation in one step is more simple and economical than modification of the polymeric matrix by polymeranalogous reactions which has been used for this purpose until present time.