Intrinsic viscosity‐molecular weight relationship for polystyrene

Abstract

Abstract The molecular weight‐viscosity relationships for polystyrene are reviewed and it is recommended that the Staudinger relationship be discarded in favor of the conventional modification of it, [η] = KM a . An emulsion‐prepared polystyrene was fractionated and the viscosities and osmotic molecular weight determined. The corresponding relationship between the viscosities in butanone and toluene is observed to follow the above equation. A table containing the molecular weight‐viscosity relationships for polymers is appended.