Molecular weight distribution of cellulose esters by gel permeation chromatography and fractional precipitation

Fractional precipitation and gel permeation chromatography yield comparable information on the molecular weight distribution of various cellulose esters. The GPC technique applied to samples obtained by fractional precipitation gives a much more definitive analytical tool than either method used independently. One practical application of this work showed the same molecular weight distribution of two cellulose acetates prepared by different methods.