U.S. Department of EnergyOffice of Scientific and Technical Information
Polymeric molecular sieve membranes for gas separation
Abstract
A porous polymer membrane useful in gas separation, the porous polymer membrane comprising a polymeric structure having crosslinked aromatic groups and a hierarchical porosity in which micropores having a pore size less than 2 nm are present at least in an outer layer of the porous polymer membrane, and macropores having a pore size of over 50 nm are present at least in an inner layer of the porous polymer membrane. Also described are methods for producing the porous polymer membrane in which a non-porous polymer membrane containing aromatic rings is subjected to a Friedel-Crafts crosslinking reaction in which a crosslinking molecule crosslinks the aromatic rings in the presence of a Friedel-Crafts catalyst and organic solvent under sufficiently elevated temperature, as well as methods for using the porous polymer membranes for gas or liquid separation, filtration, or purification.
- Inventors:
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1375236
- Patent Number(s):
- 9,731,249
- Application Number:
- 14/667,968
- Assignee:
- UT-BATTELLE, LLC
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Mar 25
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
Citation Formats
Dai, Sheng, Qiao, Zhenan, and Chai, Songhai. Polymeric molecular sieve membranes for gas separation. United States: N. p., 2017.
Web.
Dai, Sheng, Qiao, Zhenan, & Chai, Songhai. Polymeric molecular sieve membranes for gas separation. United States.
Dai, Sheng, Qiao, Zhenan, and Chai, Songhai. 2017.
"Polymeric molecular sieve membranes for gas separation". United States. https://www.osti.gov/servlets/purl/1375236.
@article{osti_1375236,
title = {Polymeric molecular sieve membranes for gas separation},
author = {Dai, Sheng and Qiao, Zhenan and Chai, Songhai},
abstractNote = {A porous polymer membrane useful in gas separation, the porous polymer membrane comprising a polymeric structure having crosslinked aromatic groups and a hierarchical porosity in which micropores having a pore size less than 2 nm are present at least in an outer layer of the porous polymer membrane, and macropores having a pore size of over 50 nm are present at least in an inner layer of the porous polymer membrane. Also described are methods for producing the porous polymer membrane in which a non-porous polymer membrane containing aromatic rings is subjected to a Friedel-Crafts crosslinking reaction in which a crosslinking molecule crosslinks the aromatic rings in the presence of a Friedel-Crafts catalyst and organic solvent under sufficiently elevated temperature, as well as methods for using the porous polymer membranes for gas or liquid separation, filtration, or purification.},
doi = {},
url = {https://www.osti.gov/biblio/1375236},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 15 00:00:00 EDT 2017},
month = {Tue Aug 15 00:00:00 EDT 2017}
}
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