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Molecularly Designed Stabilized Asymmetric Hollow Fiber Membranes for Aggressive Natural Gas Separation
Author(s) -
Liu Gongping,
Li Nanwen,
Miller Stephen J.,
Kim Danny,
Yi Shouliang,
Labreche Ying,
Koros William J.
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201607055
Subject(s) - membrane , gas separation , hollow fiber membrane , fiber , natural gas , materials science , chemical engineering , chemistry , polymer chemistry , composite material , organic chemistry , engineering , biochemistry
New rigid polyimides with bulky CF 3 groups were synthesized and engineered into high‐performance hollow fiber membranes. The enhanced rotational barrier provided by properly positioned CF 3 side groups prohibited fiber transition layer collapse during cross‐linking, thereby greatly improving CO 2 /CH 4 separation performance compared to conventional materials for aggressive natural gas feeds.
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