Preparation, characterization and catalytic application of PdPt bimetallic nanoparticles stabilized by 15-membered triolefinic macrocycle-terminated poly(propylene imine) dendrimer.

PdPt bimetallic nanoparticles stabilized by 15-membered triolefinic macrocycle-stabilized poly(propylene imine) dendrimer (G3-M(Pd xPt10− x) DSNs) have been prepared via synthesis of a 15-membered triolefinic macrocycle-modified third-generation poly(propylene imine) dendrimer (G3-M) and then synchronous with Pd(PPh3)4/Pt(PPh3)4 complexes. The structure and of the DSNs were characterized using Fourier transform infrared, 1H NMR, transmission , energy-dispersive X-ray and X-ray photoelectron analyses. As a novel catalyst system, it can be concluded that the composition of the bimetallic nanoparticles has an influence on the of the reaction of acrylonitrile-butadiene rubber, which can be related to synergistic effect. Furthermore, the selectivity and recyclability of G3-M(Pd xPt10− x) DSN catalyst are also discussed. [ABSTRACT FROM AUTHOR]