Synthesis, molecular structure and catalytic performance of heterocycle-fused cyclopentadienyl-amido CGC of Ti (IV) in ethylene (co)polymerization: The formation and precision rheometry of long-chain branched polyethylenes

Ilya E. Nifant'ev,Alexander A. Vinogradov,Alexey A. Vinogradov,Guzelia I. Sadrtdinova,Pavel D. Komarov,Mikhail E. Minyaev,Sergey O. Ilyin,Artem V. Kiselev,Tatyana I. Samurganova,Pavel V. Ivchenko

European Polymer Journal（2022）

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Abstract

•Synthesis and molecular structure of heterocycle-fused Ti (IV) CGCs.•Study of heterocycle-fused Ti (IV) CGCs in ethylene (co)polymerization.•Precision rheology studies of polyethylenes prepared on heterocycle-fused Ti (IV) CGCs.•Indeno[1,2-b]indole based Ti complex Ti2 catalyzes LCB formation even at 80 °C.

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Key words

Constrained-geometry complexes,Long-chain branching,Polyethylene,Polymerization,Polyolefins,X-ray diffraction

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