Fully Automated Instrument for Solution Viscosity in Polymeric Materials

materials is very important to the industry, both to research and manufacturing, since it can be used to estimate molar mass providing important information relating to the physical properties of polymers. The relative viscosity of a dilute polymer solution to that of the pure solvent itself is measured and from it, the intrinsic viscosity (IV or [h ]) of the polymer is calculated. Due to the popularity of dilute solution viscosity measurements and the availability of those methods in many manufacturing laboratories, the IV of polymers has been traditionally used to specify and to control the production grades. It must be noted however, that the IV is not a property of the polymer itself, as the molar mass is, but rather a property of the polymer solution, influenced by the solvent and the temperature.