Versuche zur charakterisierung eines polystyrol-gepfropften zellstoffes

A graft copolymer of cellulose (wood-pulp) and polystyrene is made soluble by carbanilation. The dioxane-solutions are used for viscometric and UV-spectrophotometric investigations, as well as for a fractionated precipitation. The material is a genuine graft copolymer. Fractions with low limiting viscosity number carry more, but shorter branches of polystyrene than such ones with high limiting viscosity number.