Olefin epoxidation catalyzed by Schiff base molybdenum (VI) complexes immobilized onto zirconium poly (styrene-phenylvinylphosphonate)-phosphate

Schiff base molybdenum (VI) complexes were immobilized onto a novel polymer-inorganic hybrid support-zirconium poly (styrene-phenylvinylphosphonate)-phosphate (ZPS-PVPA). The immobilized catalysts were well characterized by IR, BET, XPS, SEM and TEM. Compared with other heterogeneous catalysts known from the relative literatures, the as-prepared heterogeneous catalysts showed comparable or even higher conversion and chemical selectivity, which was mainly attributed to the special structure and composition of ZPS-PVPA. Moreover, the supported catalysts were easily recovered by simple filtration and could be reused at least tell times with little loss of activity. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.