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Title: Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes

Abstract

Three new isomeric 6FDA-based polyimide-ionenes, with imidazolium moieties and varying regiochemistry (para-, meta-, and ortho- connectivity), and composites with three different ionic liquids (ILs) have been developed as gas separation membranes. The structural-property relationships and gas separation behaviors of the newly developed 6FDA polyimide-ionene + IL composites have been extensively studied. All the 6FDA-based polyimide-ionenes exhibited good compatibility with the ILs and produced homogeneous hybrid membranes with the high thermal stability of ~380 °C. Particularly, [6FDA I4A pXy][Tf2N] ionene + IL hybrids having [C4mim][Tf2N] and [Bnmim][Tf2N] ILs offered mechanically stable matrixes with high CO2 affinity. The permeability of CO2 was increased by factors of 2 and 3 for C4mim and Bnmim hybrids (2.15 to 6.32 barrers), respectively, compared to the neat [6FDA I4A pXy][Tf2N] without sacrificing their permselectivity for CO2/CH4 and CO2/N2 gas pairs.

Authors:
; ORCiD logo; ; ; ORCiD logo;
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
OSTI Identifier:
1530918
Alternate Identifier(s):
OSTI ID: 1612862
Grant/Contract Number:  
SC0018181; CAN 80MSFC18M0041; CHE-1726812
Resource Type:
Published Article
Journal Name:
Membranes
Additional Journal Information:
Journal Name: Membranes Journal Volume: 9 Journal Issue: 7; Journal ID: ISSN 2077-0375
Publisher:
MDPI
Country of Publication:
Switzerland
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 6FDA polyimides; ionenes; Hybrid Membranes; CO2 Separation

Citation Formats

O’Harra, Kathryn E., Kammakakam, Irshad, Devriese, Emily M., Noll, Danielle M., Bara, Jason E., and Jackson, Enrique M. Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes. Switzerland: N. p., 2019. Web. doi:10.3390/membranes9070079.
O’Harra, Kathryn E., Kammakakam, Irshad, Devriese, Emily M., Noll, Danielle M., Bara, Jason E., & Jackson, Enrique M. Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes. Switzerland. doi:10.3390/membranes9070079.
O’Harra, Kathryn E., Kammakakam, Irshad, Devriese, Emily M., Noll, Danielle M., Bara, Jason E., and Jackson, Enrique M. Wed . "Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes". Switzerland. doi:10.3390/membranes9070079.
@article{osti_1530918,
title = {Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes},
author = {O’Harra, Kathryn E. and Kammakakam, Irshad and Devriese, Emily M. and Noll, Danielle M. and Bara, Jason E. and Jackson, Enrique M.},
abstractNote = {Three new isomeric 6FDA-based polyimide-ionenes, with imidazolium moieties and varying regiochemistry (para-, meta-, and ortho- connectivity), and composites with three different ionic liquids (ILs) have been developed as gas separation membranes. The structural-property relationships and gas separation behaviors of the newly developed 6FDA polyimide-ionene + IL composites have been extensively studied. All the 6FDA-based polyimide-ionenes exhibited good compatibility with the ILs and produced homogeneous hybrid membranes with the high thermal stability of ~380 °C. Particularly, [6FDA I4A pXy][Tf2N] ionene + IL hybrids having [C4mim][Tf2N] and [Bnmim][Tf2N] ILs offered mechanically stable matrixes with high CO2 affinity. The permeability of CO2 was increased by factors of 2 and 3 for C4mim and Bnmim hybrids (2.15 to 6.32 barrers), respectively, compared to the neat [6FDA I4A pXy][Tf2N] without sacrificing their permselectivity for CO2/CH4 and CO2/N2 gas pairs.},
doi = {10.3390/membranes9070079},
journal = {Membranes},
number = 7,
volume = 9,
place = {Switzerland},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.3390/membranes9070079

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Cited by: 5 works
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