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- Title
Preparation of boronic acid-based nitrogen-rich conjugated microporous polymers and its CO<sub>2</sub> adsorption performance.
- Authors
CHEN Jian; LYU Wei; CHENG Zhonghua; ZUO Hongyu; LIAO Yaozu
- Abstract
Conjugated microporous polymers (CMPs) have great potential in the field of CO2 adsorption due to their high specific surface area and molecular structure designability, and the introduction of polar heteroatoms can further improve their CO2 adsorption performance. Boronic acid-based conjugated microporous polymers (BACMPs) rich of N and B heteroatom were obtained by Buchwald-Hartwig coupling reaction with tris(4-aminophenyl)amine (TA) and 3,5-dibromophenylboronic acid (BA). The pore size of BACMPs can be controlled by changing the monomer reaction ratio. The structure and morphology of BACMPs were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and N2 adsorption and desorption tests, and the CO2 adsorption and desorption tests of BACMPs were carried out to explore their CO2 adsorption properties. The results show that the obtained BACMPs have a large number of micropores, the Brunauer-Emmett-Teller specific surface area can reach up to 475 m²/g, and the CO2 adsorption mass fraction can reach up to 8.53% at 100 kPa and 273 K, which has the application prospect of CO2 adsorption.
- Publication
Journal of Donghua University (Natural Science Edition), 2023, Vol 49, Issue 3, p68
- ISSN
1671-0444
- Publication type
Academic Journal
- DOI
10.19886/j.cnki.dhdz.2021.071