Jump to main content
Jump to site search

Issue 5, 2015
Previous Article Next Article

Microporous spiro-centered poly(benzimidazole) networks: preparation, characterization, and gas sorption properties

Author affiliations

Abstract

Three microporous spiro-centered poly(benzimidazole) networks were synthesized based on the condensation of di-/trialdehyde with 3,3,3′,3′-tetramethyl-1,1′-spirobisindane-5,5′,6,6′-tetrone in refluxing glacial acetic acid containing ammonium acetate. Fourier transform infrared and solid-state cross-polarization/magic-angle-spinning 13C NMR spectroscopy techniques were utilized to confirm the presence of a benzimidazole ring in the obtained polymers. The morphology can be observed from scanning electron microscopy and transmission electron microscopy images. The materials possess a Brunauer–Emmet–Teller specific surface area ranging from 520 to 600 m2 g−1. The highest hydrogen and carbon dioxide sorption capacity values of the obtained poly(benzimidazole) networks are up to 1.60 wt% (77 K and 1.0 bar) and 13.6 wt% (273 K and 1.0 bar), respectively, which are comparable to those of most of the microporous organic polymers.

Graphical abstract: Microporous spiro-centered poly(benzimidazole) networks: preparation, characterization, and gas sorption properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Jul 2014, accepted on 28 Sep 2014 and first published on 29 Sep 2014


Article type: Paper
DOI: 10.1039/C4PY00954A
Author version
available:
Download author version (PDF)
Polym. Chem., 2015,6, 748-753

  •   Request permissions

    Microporous spiro-centered poly(benzimidazole) networks: preparation, characterization, and gas sorption properties

    Y. Zhao, T. Wang, L. Zhang, Y. Cui and B. Han, Polym. Chem., 2015, 6, 748
    DOI: 10.1039/C4PY00954A

Search articles by author

Spotlight

Advertisements