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Preparation of facile separable homogeneous Rhodium catalyst and its application for the catalytic hydrogenation of nitrile butadiene rubber and styrene-butadiene rubber

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Abstract

Poly(propylene imine) dendrimer (G2-PPI) terminated by nitrogen-containing triolefinic macrocycle on the periphery (G2-M) was synthesized by a nucleophilic substitution reaction. The structure and composition of G2-M were characterized by FT-IR, 1H-NMR and elemental analysis. The Rh3+ dendrimer-stabilized catalyst (G2-M(Rh3+)) was prepared by utilizing G2-M as stabilizer and analyzed by UV–Vis spectroscopy, 1H-NMR spectrometry, XPS and XRD. G2-M(Rh3+) demonstrates excellent catalytic activity and selectivity for the hydrogenation of nitrile-butadiene rubber (NBR) and styrene-butadiene rubber (SBR), and Rh residue contents for HNBR and HSBR are only 35 and 13 ppm, respectively, without any post treatment.

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Acknowledgement

We gratefully acknowledge the financial support of the National Natural Science Foundation of China (Project No. 51273071).

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Correspondence to Xiaohong Peng.

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Zhou, W., Yi, J., Lin, J. et al. Preparation of facile separable homogeneous Rhodium catalyst and its application for the catalytic hydrogenation of nitrile butadiene rubber and styrene-butadiene rubber. Res Chem Intermed 43, 3651–3662 (2017). https://doi.org/10.1007/s11164-016-2838-7

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  • DOI: https://doi.org/10.1007/s11164-016-2838-7

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