
doi: 10.1246/bcsj.35.609
Abstract The solvent extractive fractional ability has been described, using Ziegler polystyrene as sample. The order in hot extraction is tetra-hydrofuran >dioxane >ethyl methyl ketone ≥ ethyl acetate, while that in cold extraction is benzene >> ethyl methyl ketone≥ethyl acetate=toluene.
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