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Title: Microporous polymeric composite membranes with advanced film properties: pore intercalation yields excellent CO2 separation performance

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/c8ta07424k· OSTI ID:1509702
ORCiD logo [1]; ORCiD logo [1];  [2];  [3];  [1];  [1];  [4]
  1. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); AECOM, Pittsburgh, PA (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States)
  4. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

Polymers of intrinsic microporosity (PIMs) are revolutionary gas separation materials because of their ultra-high permeability, but suffer from low gas pair selectivity (for example CO2/N2) and poor durability due to brittleness. In this paper, we present a simple solution to these problems by blending PIM-1 with compatible polymer blend composed of PIM-1 and an ether side chain polyphosphazene (MEEP80), which possesses better mechanical flexibility and higher CO2/N2 selectivity than the native PIM-1 while maintaining high CO2 permeability. Under mixed gas test conditions, a blend of 25 wt% MEEP80 in PIM-1 has a CO2 permeability of 2440 barrer and a CO2/N2 selectivity of 39 under mixed gas testing conditions, putting it among the best known polymers for CO2/N2 separation.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); USDOE Office of Fossil Energy and Carbon Management (FECM)
Grant/Contract Number:
FE0004000
OSTI ID:
1509702
Alternate ID(s):
OSTI ID: 1480556
Report Number(s):
CONTR-PUB-577; JMCAET
Journal Information:
Journal of Materials Chemistry. A, Vol. 6, Issue 45; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Figures / Tables (4)