Journal
CHEMSUSCHEM
Volume 11, Issue 5, Pages 916-923Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201702243
Keywords
carbon; molecular sieves; gas separation; membranes; polymers
Funding
- National Natural Science Funds for Distinguished Young Scholar [51625306]
- Key Project of National Natural Science Foundation of China [21433012]
- National Natural Science Foundation of China [51403231, 51603229, 21406258]
- Natural Science Foundation of Jiangsu Province [BE2015072]
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Carbon molecular sieve (CMS)-based membranes have attracted great attention because of their outstanding gas-separation performance. The polymer precursor is a key point for the preparation of high-performance CMS membranes. In this work, a microporous polyimide precursor containing a Troger's base unit was used for the first time to prepare CMS membranes. By optimizing the pyrolysis procedure and the soaking temperature, three TB-CMS membranes were obtained. Gas-permeation tests revealed that the comprehensive gas-separation performance of the TB-CMS membranes was greatly enhanced relative to that of most state-of-the-art CMS membranes derived from polyimides reported so far.
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