Abstract
A selection of chemically modified porous polyaromatic beads for gas chromatography has been prepared either by polymerization of a substituted styrene and divinylbenzene or by chemical derivatization of polymers prepared from divinylbenzene and styrene or ethylvinylbenzene. The chemical composition and hence the extent of chemical modification of the polymers was examined by elemental analysis and infrared spectroscopy. The physical characteristics of the beads were examined by electron microscopy and differential thermal analysis. The chromatographic behaviour of a wide range of organic compounds on the polymers was studied. Almost all the compounds gave symmetrical peaks on the adsorbates. However, carboxylic acids and some alcohols showed peak tailing on some of the columns. The effect of chemical modification on the adjusted retention times of the compounds is discussed.
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