Abstract
Since their discovery in the 1950s, several breakthroughs marked the evolution of Ziegler–Natta catalysts and contributed to improve their catalytic activity and selectivity, conditioning the whole polyolefin market. However, some fundamental questions are still open about the structural and functional properties of the active sites, whose understanding could open new perspectives in controlling the polymerization process. In this context, a SiO2-supported Ziegler–Natta catalyst was prepared following a step by step approach, with the simultaneous goal of synthesis and characterization, to investigate with a surface science approach each step of the catalytic process.
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Acknowledgements
We are grateful to Elena Groppo, Silvia Bordiga and Adriano Zecchina for their inspiring guidance in the field of polymerization catalysis. This work has been supported by the Progetto di Ateneo/CSP 2014 (Torino_call2014_L1_73).
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Piovano, A., Martino, G.A. & Barzan, C. A spectroscopic investigation of silica-supported TiClx species: a case study towards Ziegler–Natta catalysis. Rend. Fis. Acc. Lincei 28 (Suppl 1), 43–49 (2017). https://doi.org/10.1007/s12210-016-0582-y
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DOI: https://doi.org/10.1007/s12210-016-0582-y