Molecularly Designed Stabilized Asymmetric Hollow Fiber Membranes for Aggressive Natural Gas Separation.

نویسندگان

  • Gongping Liu
  • Nanwen Li
  • Stephen J Miller
  • Danny Kim
  • Shouliang Yi
  • Ying Labreche
  • William J Koros
چکیده

New rigid polyimides with bulky CF3 groups were synthesized and engineered into high-performance hollow fiber membranes. The enhanced rotational barrier provided by properly positioned CF3 side groups prohibited fiber transition layer collapse during cross-linking, thereby greatly improving CO2 /CH4 separation performance compared to conventional materials for aggressive natural gas feeds.

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عنوان ژورنال:
  • Angewandte Chemie

دوره 55 44  شماره 

صفحات  -

تاریخ انتشار 2016