Supercritical Fluid Chromatography Analysis of Polystyrene

The third category of supercritical fluid-polymer activity reported in the literature describes the use of SCF chromatography to separate oligomers. The classic paper in this field is by Jentoft and Gouw (1969), who reported their work on the supercritical fluid chromatographic separation of a monodis-perse polystyrene. Jentoft and Gouw use the quotation marks because, as they report later in the article, the polystyrene sample that they tested 

Fractionation of a polymer into its separate oligomers, as reported by Jentoft and Gouw, is an impressive achievement for supercritical fluid solvents. However, in general it is achieved only in conjunction with chromatography with materials processed at microgram to milligram levels. Supercritical fluid 

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