Preparation of Triphenylamine Based PAF-106s via Mechanical Ball Milling and C2 Hydrocarbons Adsorption Property

Using triphenylamine as monomer, FeCl3 as catalyst, and formaldehyde dimethyl acetal (FDA) as knitting agent, PAF-106s were prepared by mechanical ball milling different molar ratios of triphenylamine, FeCl3 and FDA. Infrared spectroscopy, elemental analysis, X-ray photoelectron spectroscopy, and solid state nuclear magnetic field (NMR) proved that polymerization had taken place. N-2 adsorption results showed that the ratio of triphenylamine, FeCI, and FDA could affect the porous properties of PAF-106s. When the ratio of FeCI, to triphenylamine increased from 3: 1 to 12: 1, and the BET specific surface area of PAF-106c increased from 135 m(2)/g to 280 leg. With the introduction of FDA, the BET specific surface area of PAF-1064-PAF-106g decreased with the increase of the ratio of FeCl3 and FDA. In addition, the adsorption and separation properties of C2 hydrocarbons for PAF-106c were investigated at 273 and 298 K, and the selectivities for C2H2/C2H2 and C2H6/C2H2 were, calculated by ideal adsorbed solution theory (IAST).