Ethylene/1-olefin copolymers have been commercially produced with multiple-site-type Ziegler-Natta catalysts in a two-reactor system, which allows the production of polymers with a broad range of microstructures and properties. In this work, the simultaneous deconvolution procedure for two-reactor system is developed to help identify an appropriate number of site types for catalysts in each reactor, estimate chain microstructures, and mass fraction of polymers produced on each site type, and also estimate mass fraction of polymers produced from each reactor. This simultaneous deconvolution procedure will allow us to understand the behavior of each site type in each reactor, which will lead to a better control of polymer chain microstructures for such a complex system.
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