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Ultra‐Microporous Triptycene‐based Polyimide Membranes for High‐Performance Gas Separation
Author(s) -
Ghanem Bader S.,
Swaidan Raja,
Litwiller Eric,
Pinnau Ingo
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201306229
Subject(s) - triptycene , polyimide , microporous material , materials science , gas separation , membrane , selectivity , barrer , chemical engineering , hydrogen , polymer chemistry , nanotechnology , composite material , catalysis , organic chemistry , chemistry , biochemistry , layer (electronics) , engineering
A highly permeable and highly selective polyimide of intrinsic microporosity is prepared using a 9,10‐diisopropyl‐triptycene contortion center. The three‐dimensionality and shape‐persistence of triptycene afford exceptional sieving‐based gas separation performance transcending the latest permeability/selectivity trade‐offs for industrial gas separations involving oxygen and hydrogen.