Thin-layer chromatography (TLC) combined with concentration gradient development has been applied to the determination of the molecular weight distribution of polystyrene prepared by a radical polymerization. Developers obtained by mixing polar nonsolvents with moderately good solvents toward polystyrene were found to give complete separation of polymer according to molecular weight. It was proved that the molecular weight distribution deduced from the present TLC experiment was in good agreement with that from a gel-permeation chromatography experiment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.