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Infrared spectroscopy as an effective tool in ring-opening metathesis polymerization: monitoring the polymerization kinetics of norbornene with amine-based Ru catalysts in real time

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Abstract

This work describes the use of the ATR-FTIR technique to investigate the ring-opening metathesis polymerization (ROMP) of norbornene with amine-based Ru complexes of type [RuCl2(PPh3)2(amine)]. Polymerization rates (RP) were determined by monitoring the appearance of the polymer absorption band at 970 cm−1 (trans-CH=CH) or the disappearance of the monomer absorption band at 1336 cm−1 (cis-CH=CH). The results revealed that the amines, as ancillary ligands (pyrrolidine, piperidine, and peridroazepine), present an effective contribution to the polymerization rate (Rp).

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Acknowledgements

The authors acknowledge CAPES, CNPq and FAPESP (Proc. 2012/24617-4, 2012/19823-4 and 2015/13756-1) for financial support.

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Authors and Affiliations

  1. Instituto de Química de São Carlos, Universidade de São Paulo, PO Box 780, São Carlos, SP, 13560-970, Brazil

    Vinicius K. Tomazett, Willy G. Santos & Benedito S. Lima-Neto

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  1. Vinicius K. Tomazett
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  2. Willy G. Santos
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  3. Benedito S. Lima-Neto
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Correspondence to Benedito S. Lima-Neto.

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Tomazett, V.K., Santos, W.G. & Lima-Neto, B.S. Infrared spectroscopy as an effective tool in ring-opening metathesis polymerization: monitoring the polymerization kinetics of norbornene with amine-based Ru catalysts in real time. Reac Kinet Mech Cat 120, 663–672 (2017). https://doi.org/10.1007/s11144-017-1147-5

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