The introduction of single-site catalysts and the use of multiple reactors in the polyolefins industry has opened new routes to design resins with the desirable microstructure to optimize performance in specific applications. This presents a greater challenge for quality control because the currently used parameters show only partial information of the resin microstructure.
Melt Index (MI) and density are common parameters in process control and product definition that represent average molar mass and average composition respectively. However, with today’s sophisticated industrial resins, these parameters are very far from defining resin performance. Polymer Char has developed a unique set of analytical techniques has been recently developed to detail additional parameters relevant to the resin performance.
GPC-QC delivers the complete Molar Mass Distribution for one sample through a simplified workflow, while keeping a fully automated sample preparation and an analysis free of manual solvent handling throughout the entire process. The complete analysis takes 30 minutes including dissolution.
IVA is based on Polymer Char’s recently developed QC platform, which integrates, in a reduced footprint, a robust dual-capillary relative viscometer combined with a high-temperature autosampler with a capacity for 42 samples. IVA can analyze a wide range of polymers with IV values from 0.5dL/g up to over 40dL/g, such as polyolefins, PET, PAN, PMMA, and others, by using almost any organic solvent.