Porous organic polymers (POPs) have received increasing attentions in a wide range of areas including adsorption, separation and catalysis. In this presentation, POPs and POP/inorganic hybrid supports were designed, synthesized and used as metallocene catalyst support for ethylene polymerization.The prepared POPs and POP/NPs (POP/MMT and POP/TiO2) hybrid supports obtained excellent particle flowability with tunnable bulk density (≥0.20 cm3/g) and specific surface area suitable for polyolefin catalysts. N2 sorption porosity, TGA, IR, XRD, SEM characterization were conducted to evaluate the POP/MMT and POP/TiO2 hybrid supports, and the results showed that the MMT sheets and TiO2 nanoparticles could be well-dispersed in the POP matrix, and excellent particle flowability and narrow particle size distribution could also gained. Ethylene polymerization results exhibited that the POP/NP supported metallocene catalysts could obtain better polymerization performance than the inorganic materials or the silica gel supported catalysts. The prepared POP/NPs catalysts show no obvious Zr+ active sites decay during the ethylene polymerization, and gain stable polymerization kinetics in 80 oC. Furthermore, the pore structure played a significant effect on the molecular weight and molecular weight distribution by nano-confined polymerization, and larger molecular chains could be produced on the POP/NPs supported catalysts with smaller nanopore size.

Xiong Wang received his B. S. degree in Chemistry and M. S. degree in Organic Chemistry from Hubei University, Wuhan, and obtained his Ph. D in Polymer Chemistry and Physics from Lanzhou University, Lanzhou. He has published more than 30 papers in scientific journals and national & international conferences, a book chapter, and acquired about 40 authorized patents. As the leader of an innovation team, he has completed successfully 13 projects on scientific researches and novel product development, supported by PetroChina, and got involved in more than 20 projects. He has gained 7 science and technology awards from PetroChina, Gansu Province and professional association