Styrene/divinylbenzene families

The Styragel family of packings represents the classical packing of size exclusion chromatography (2). It is based on cross-linked styrene-divinylbenzene particles. Pore sizes range from around 20 A for the Styragel... 

The styrene-divinylbenzene matrix of the Styragel packings is chemically very inert, which makes this family of packings useful for a broad range of applications. The chromatographic conditions for the analysis of many polymers have been worked out in detail. A more specific discussion of the solvents recommended for the different polymer types is included in Section III,A,4. 

Zhang developed a monolithic poly(styrene-co-divinylbenzene) CEC column in which the EOF is supported by carboxyl groups of polymerized methacrylic acid [ 133]. Using benzene as a probe, column efficiencies of 90,000 -150,000 were observed within a flow velocity range of l-10cm/min (0.2-1.7 mm/s). Different families of compounds such as phenols, anilines, chlorobenzenes, phenylendi-amines, and alkylbenzenes were well separated typically in less than 5 min using 20 cm long columns. 

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