Abstract
AbstractEthylene polymerization using Ziegler‐Natta catalysts comprising TiCl4 supported on MgCl2 with aluminum alkyls as co‐catalyst produce UHMWPE through a mediated proportional reduction of the Ti oxidation states. We observe the molecular weight regulation to be a combined function of hydrogen and the co‐catalyst through experimental evidences. The role of unavoidable chain transfer reactions for molecular weight regulation has been observed during the production of UHMWPE along with H2 through controlled catalyst dosing. Process optimization studies at 7.5 atm ethylene pressure could absorb small deviations in the catalyst systems to maintain the desired molecular weights.magnified image
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