Abstract
The dipping method was devised to deposit Pd onto carbon nanotube as supported catalyst (Pd/CNT) for the copolymerization of carbon monoxide (CO) and styrene(ST) towards the formation of polyketone (PK). The Pd/CNT was characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). The construction and crystallization property of PK were evaluated by Fourier transform infrared spectroscopy (FTIR), 13C-nuclear magnetic resonance(NMR) and XRD, respectively. The catalyst showed excellent activity and reusability in promoting the fabrication of PK. It can be recycled 14 times with the highest total catalytic activity of 4 239.64 gPK/ (gPd·h) at Pd content of 8.63wt%. The results indicate that the prepared catalyst is effective to catalyze the copolymerization of CO and styrene.
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