High Temperature Branching Analysis of Metallocene Catalysts for Polyethylenes

In order to characterize polyolefins by liquid chromatography, a high temperature chromatograph must be used in order to solubilize the polymer. Temperatures typically range from 135 - 145 °C, and the solvent of choice is trichlorobenzene (TCB). With conditions this aggressive, the choice of detectors is critical. In this application note we show the power of results obtained from a High Temperature miniDAWN^® for a metallocene catalyst.