Synthesis and characterization of functional porous organic polymers as efficient metallocene catalyst supports

Abstract

Porous P(HEMA-co-DVB) particles with tunable pore structure and morphology were prepared by a dispersion polymerization strategy.

CoFe2O4@Carbon Spheres Electrode: A One‐Step Solvothermal Method for Enhancing the Electrochemical Performance of Hybrid Supercapacitors

“…Likewise, the surface area is playing a role in chemical kinetics where increasing the surface area of a substance led to increase the rate of a chemical reaction. Therefore, the particle surface area (S) in m 2 g −1 for the samples was characterized using Brunauer Emmett‐Teller (BET) method . The results of the surface area were shown in Figure S1 and also listed in Table .…”

Porous Organic Polymers-Supported Metallocene Catalysts for Ethylene/1-Hexene Copolymerization

“…In this work, several POPs (POP-1/POP-2/POP-3) were preparedin 2-methyl-1-propanol, ethanol/deionized water (volume ratio = 9:1), and ethyl acetate, respectively, according to a dispersion polymerization method [30]. Then, the prepared POPs were used as metallocene catalyst supports to obtain POPs-supported metallocene catalysts.…”

“…However, despite the different pore size distribution, a similarity exists in the pore structure of the three POP supports, such that high abundance in the pore size of 1-4 nm scale can be observed in their NLDFT curves. Furthermore, the pore size distribution of the HEMA-functionalized POPs could be easily controlled by the selection of different HEMA/divinylbenzene (DVB) molar ratio or different solvent [29,30]. In contrast, the pore sizes of silica 2408 mainly focused in the meso-pore range (roughly 6-30 nm).…”

“…HEMA-functionalized porous organic polymers particles were synthesized according to a dispersion polymerization method reported by our group [29,30]. Briefly, 140 mL solvent was charged into a multi-necked glass reactor, then 0.0369 mol of DVB (80%), 0.0246 mol of HEMA, and 2 wt % of PVA were added into the reactor when stirring.…”

“…In contrast, porous organic polymer (POP) supports offer significant advantages over their inorganic equivalents: they provide a much closer analogue to the environment prevailing in homogeneous polymerization, do not require fastidious pre-treatment, and should not significantly affect the final polyolefin properties [9,[20][21][22]. Furthermore, porous organic polymers can be properly designed and synthesized with tunable pore size distribution, flexible synthetic strategy, and readily modifiable functionality [23][24][25][26][27][28][29][30][31].…”