Issue 8, 2017

Microporous polyimide networks constructed through a two-step polymerization approach, and their carbon dioxide adsorption performance

Abstract

Based on a dianhydride monomer 2,5-bis(3,4-dicarboxyphenoxy)-4′-phenylethynyl biphenyl (PEPHQDA) containing a crosslinkable phenylethynyl pendant group, microporous polyimide networks (HBPI-CRs) were prepared through a two-step pathway combining polymerization and crosslinking reactions. Specifically microporous features such as surface morphology, microporous structure and uniform nanometer-sized pore channels were introduced to the polyimide networks through this two-step pathway. The HBPI-CR networks exhibited a BET surface area (385–497 m2 g−1) as well as a comparable CO2 uptake (1.65–2.04 mmol g−1 at 273 K and 1 bar) and enthalpy of adsorption (28.6–30.0 kJ mol−1) to that of other microporous polyimides derived from rigid tri-dimensional monomers.

Graphical abstract: Microporous polyimide networks constructed through a two-step polymerization approach, and their carbon dioxide adsorption performance

Supplementary files

Article information

Article type
Paper
Submitted
16 Oct 2016
Accepted
04 Jan 2017
First published
04 Jan 2017

Polym. Chem., 2017,8, 1298-1305

Microporous polyimide networks constructed through a two-step polymerization approach, and their carbon dioxide adsorption performance

H. Yao, N. Zhang, N. Song, K. Shen, P. Huo, S. Zhu, Y. Zhang and S. Guan, Polym. Chem., 2017, 8, 1298 DOI: 10.1039/C6PY01814A

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