Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (3): 20210771.doi: 10.7503/cjcu20210771

• Organic Chemistry • Previous Articles     Next Articles

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

CHEN Xiaolu1, YUAN Zhenyan1, ZHONG Yingchun2, REN Hao1()   

  1. 1.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
    2.College of Chemistry,Jilin University,Changchun 130012,China
  • Received:2021-11-11 Online:2022-03-10 Published:2022-01-15
  • Contact: REN Hao E-mail:renhao@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21975096)

Abstract:

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. N2 adsorption results showed that the ratio of triphenylamine, FeCl3 and FDA could affect the porous properties of PAF-106s. When the ratio of FeCl3 to tripheny? lamine increased from 3∶1 to 12∶1, and the BET specific surface area of PAF-106c increased from 135 m2/g to 280 m2/g. With the introduction of FDA, the BET specific surface area of PAF-106d—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/C2H4 and C2H6/C2H4 were calculated by ideal adsorbed solution theory(IAST).

Key words: Porous organic framework, Mechanical milling, Triphenylamine, Adsorption

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