New Ester-Containing Porous Polymeric Beads as Gas Chromatographic Stationary Phase

Abstract

Abstract: A series of porous copolymers from diallyl m-phthalate, divinylbenzene and acryloni-trile were prepared by suspension polymerization in the presence of a mixture of toluene and C₉～G¹³ alcohols as a diluent, using azo-bis-isobutyronitrile as an initiator.By changing the molar fractions of the monomers, the GCcolumn packing materials of different polarities have been obtained.The porous structure of the polymeric beads is mainly dependent on the amount and constituents of the diluent.The physicochemical and gas chromatographic properties of these new ester-containing polymeric beads were determined and the polarities were evaluated by means of modified McReynolds polarity scale.The excellent selectivity of these GCstationary phases is well documented through several examples.

Key words: Gas chromatography, Column packing materials, Ester-containing polymeric beads, Preparation

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ZUO Yu-min, LIU Shu-yuan, LI Li-geng, WANG Yong-hui. New Ester-Containing Porous Polymeric Beads as Gas Chromatographic Stationary Phase[J]. Chem. J. Chinese Universities, 1992, 13(1): 65.

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New Ester-Containing Porous Polymeric Beads as Gas Chromatographic Stationary Phase

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