Abstract
AbstractThe viscosity behaviour of polystyrene fractions in benzene and methyl ethyl ketone has been examined at high dilutions. The nature of the viscosity‐concentration curves is markedly dependent on the extent of shaking the solutions prior to viscosity measurements, thereby showing that the anomalous viscosity behaviour of polymers at high dilutions results from configurational changes of the macromolecules. Results obtained in case of solutions of polymethyl acrylate fractions further indicate that adsorption effects are important only in case of polymers with polar groups.
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