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Enhanced Separation Capability of Rhodium Ionic Catalyst Encapsulated by Propionation-Terminated Poly(propylene imine) Dendrimer

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Abstract

The second generation of poly(propylene imine) dendrimer peripherally terminated by propionation (G2-P) was synthesized. The structure and composition of G2-P were characterized by Fourier transform infrared (FTIR) spectrometer, 1H nuclear magnetic resonance spectroscopy (NMR), 13C NMR, matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) and elemental analysis. The encapsulated catalyst (G2-P(Rh3+)) was prepared by the coordination between G2-P and RhCl3·3H2O, and applied to the hydrogenation of nitrile-butadiene rubber (NBR) and styrene-butadiene rubber (SBR). G2-P(Rh3+) displayed excellent catalytic activity and selectivity for NBR and SBR hydrogenation, and Rh residue contents for hydrogenated NBR (HNBR) and hydrogenated SBR were only 80 ppm and 35 ppm respectively without any post treatment, which decreased 69.8% and 80.9% respectively compared with those of RhCl(PPh3)3.

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Authors and Affiliations

  1. Department of Chemistry, Sun Yat-Sen University, Guangzhou, P. R. China

    Wei Zhou

  2. Department of Polymer Science and Engineering, South China University of Technology, Guangzhou, P. R. China

    Wei Zhou & Xiaohong Peng

Authors
  1. Wei Zhou
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  2. Xiaohong Peng
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Correspondence to Xiaohong Peng.

Additional information

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

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Zhou, W., Peng, X. Enhanced Separation Capability of Rhodium Ionic Catalyst Encapsulated by Propionation-Terminated Poly(propylene imine) Dendrimer. Macromol. Res. 27, 238–242 (2019). https://doi.org/10.1007/s13233-019-7044-1

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  • DOI: https://doi.org/10.1007/s13233-019-7044-1

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