Unusual 3,4-Oxidative Coupling Polymerization on 1,2,5-Trisubstituted Pyrroles for Novel Porous Organic Polymers

Qiong Jia; Xiaohua Ma; Hanyuan Chen; Xiaodong Li; Mu-Hua Huang

doi:10.1021/acsmacrolett.3c00439

Unusual 3,4-Oxidative Coupling Polymerization on 1,2,5-Trisubstituted Pyrroles for Novel Porous Organic Polymers

ACS Macro Lett. 2023 Oct 17;12(10):1358-1364. doi: 10.1021/acsmacrolett.3c00439. Epub 2023 Sep 21.

Authors

Qiong Jia¹, Xiaohua Ma², Hanyuan Chen¹, Xiaodong Li¹, Mu-Hua Huang¹

Affiliations

¹ School of Materials Science and Engineering, Experimental Center for Advanced Materials, Beijing Institute of Technology, No.5, Zhongguancun South Street, Beijing 100081, P. R. China.
² State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Membrane Science and Technology, Tiangong University, Tianjin 300387, P. R. China.

PMID: 37733801
DOI: 10.1021/acsmacrolett.3c00439

Abstract

Porous organic polymers (POPs) have demonstrated promising task-specific applications due to their structure designability and thus functionality. Herein, an unusual 3,4-polymerization on 1,2,5-trisubstituted pyrroles has been developed to give linear polypyrrole-3,4 in high efficiency, with Mn of 20000 and PDI of 1.7. This novel polymerization technique was applied to prepare a series of polypyrrole-based POPs (PY-POP-1-4), which exhibited high BET surface areas (up to 762 m² g^-1) with a meso-micro-supermicro hierarchically porous structure. Furthermore, PY-POPs were doped in the mixed matrix membranes based on the polysulfone matrix to enhance the gas permeability and gas pair selectivity, with H₂/N₂ selectivity up to 84.6 and CO₂/CH₄ and CO₂/N₂ selectivity up to 46.8 and 39.6.