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Updated: Jun 13, 2026

Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
Published on: November 27, 2015
A Complex Study of Nuclear Magnetic Resonance for Olefin Polymerization Catalyst
Xiaojie Ji1, Xuelei Duan1, Xinyue Liu1
1National Institute of Clean-and-Low-Carbon Energy, Beijing 102209, China.
Abstract:
This review summarizes recent applications of nuclear magnetic resonance (NMR) in olefin polymerization catalysis. Due to its capability for quantitative characterization of molecular structures and in situ study, NMR is employed to study the structure of catalysts, and to trace catalyst/cocatalyst interactions, the evolution of active species, monomer insertion, and chain-end formation. This review emphasizes the activation mechanisms of molecular catalysts, ion-pair structures, and the measurement of kinetics. It also discusses the potential applications of in situ multinuclear NMR and isotope labeling technologies in olefin polymerization catalysis studies.
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