Abstract
Abstract The retention volumes of polystyrene, poly(α-methylstyrene) and poly-(methylmethacrylate) molecules eluted with different pure solvents on silica size exclusion chromatography columns have been measured. Departures from the universal calibration plot due to polymer adsorption onto the silica substrate are found in some solvent systems, when the polymer gel interactions overcome the solvent gel ones. The competition between the interactions developed in the systems is adequately expressed through the solubility parameters of the polymers and of the solvents.
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