Reversed-phase high-performance liquid chromatography on porous copolymersof different chemical structure

The influence of chemical structure of porous polymers on the chromatograph ic properties of high-performance liquid chromatography columns was studied . Columns were packed with four different porous copolymers: di(methacryloy loxymethyl)naphthalene-divinylbenzene containing ester functional groups, 4 ,4'-bis(maleimido)diphenylmethane-divinylbenzene with imide groups, di(4,4' -dimethacrylphenyl)sulfone-divinylbenzene which contains sulphonyl groups, and styrene-divinylbenzene with any functional groups. Using the alkyl aryl ketone scale, the retention indices of five homologous series (alkylbenzen es, alkyl aryl ketones, N-alkylanilines, alkyl aryl ethers, alkylbenzoates) and column test compounds (toluene, nitrobenzene, p-cresol, 2-phenylethano l, N-methylaniline) were calculated. Their values were used for comparison of the selectivities of the studied polymeric packings. (C) 2000 Elsevier S cience BN. All rights reserved.