Preparation Of Functional Ordered Mesoporous Phenolic Resin Polymers And Their Applications In Carbon Dioxide Chemistry

CO₂ is actually a non-toxic,low-cost and abundant C1 resource.The synthesis of valuable organic compounds by chemical reaction using CO₂ as raw material is one of the most promising ways,which is in accord with the development discipline of green chemistry.Heterogeneous catalyst is a kind of catalysts which is easy to recover and recycle.Various heterogeneous catalysts for the fixation and conversion of carbon dioxide have been developed due to its easy recovery.Meanwhile,the ordered mesoporous phenolic resin polymers have become one of the choices for heterogeneous catalyst support due to its unique properties and advantages.Based on these,three kinds of ordered mesoporous polymer catalysts were developed and used for the carbon dioxide conversion reaction.The detailed contents are as follows:1.Di-ionic liquid functionalized ordered mesoporous polymers were prepared by the ionization of 3-IMP-MPs and were used to catalyze carbon dioxide formylation with amine compounds.The optimized reaction condition was 1 MPa,30°C and 18 h.The catalysts showed high activity for various substrates and general applicability.2.Silver nanoparticles loaded amino-functionalized FDU-15 with uniform dispersion,small particle size and high specific surface area were prepared.Among them,the FDU-DMA/Ag which used the dimethylamine functionalized FDU-15 as the support possessed smaller particle size and higher dispersion.The FDU-DMA/Ag could efficiently catalyze the conversion of carbon dioxide to alkynic acid at mild condition and the activity of the catalyst has not decreased significantly after five cycles.3.An amino-functionalized order mesoporous phenolic polymers?NH₂-MPs?were directly prepared via evaporation-induced self-assembly way by using a commercial 4-aminophenol to replace some phenolic raw materials,then were characterized by XRD,N₂ adsorption-desorption,TEM,XPS and so on.The results showed that the NH₂-MPs were exhibited highly ordered 2D hexagonal structure and the amines were successfully introduced into the skeleton The NH₂-MPs-x/Ag were further prepared by the in-situ adsorption of metal ions in the NH₂-MPs-x and then reduction.The NH₂-MPs-x/Ag can efficiently catalyze the reaction of CO₂ and terminal alkyne to produce alkynic acid.Amongthe the prepared catalysts,NH₂-MPs-10%/Ag showed the highest catalytic activity,and the yield could reach 96%at 50°C and atmospheric pressure,which is much higher than that of FDU-DMA/Ag catalyst.