One‐point determination of intrinsic viscosity for polycarbonate, poly(phenylene oxide), and polyetherimide

摘要

AbstractIntrinsic viscosity determination for polymers can be simplified and considerable time and effort saved via a single measurement of relative viscosity at a known concentration. Several workers have proposed one‐point intrinsic viscosity methods. Of the methods in the literature, two one‐point methods were found to be as accurate as the multiple‐point graphical extrapolation procedure. These two methods, one due to Solomon and Ciuta and a nomographic technique due to Khan and Bhargava, were successfully applied for the intrinsic viscosity determination of three polymers: polycarbonate, poly(phenylene oxide) and polyether