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A triptycene derived hypercrosslinked polymer for gas capture and separation applications
Author(s) -
Ansari Mosim,
Bera Ranajit,
Das Neeladri
Publication year - 2022
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.51449
Subject(s) - triptycene , microporous material , barrer , polymer , selectivity , bar (unit) , materials science , chemical engineering , volume (thermodynamics) , adsorption , conjugated microporous polymer , polymer chemistry , catalysis , chemistry , organic chemistry , thermodynamics , composite material , physics , meteorology , engineering
This work describes facile synthesis of a porous polymeric material ( T‐HCP ) using readily available reagents. Specifically, T‐HCP is a thermally stable and hypercrosslinked polymer (HCP) that is essentially microporous with a high BET specific surface area (940 m 2 g −1 ). Triptycene based polymers are known to feature internal free volume. Thus, the incorporation of triptycene units and extensive crosslinking by an external cross‐linker in T‐HCP makes it a promising adsorbent for small gas capture applications. Experimental results show that T‐HCP demonstrated good CO 2 capture capacity of 132 mg g −1 (273 K, 1 bar). Molecular hydrogen storage capacity of T‐HCP is estimated to be 17.7 mg g −1 (77 K, 1 bar). T‐HCP revealed high CO 2 /N 2 selectivity (up to 63) as well as promising CO 2 /CH 4 (up to 9.1) selectivity suggesting its potential applicability for CO 2 separation from flue and natural gases.