Polymers having stable cationic pendant groups for use as anion exchange membranes
Abstract
Poly(aryl alkylene) polymers or poly(aryl-crown ether-alkylene) polymers with pendant cationic groups are provided which have an alkaline-stable cation, such as imidazolium, introduced into a rigid aromatic polymer backbone free of ether bonds. Hydroxide exchange membranes or hydroxide exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties in an ambient dry state as compared to conventional hydroxide exchange membranes or ionomers. Hydroxide exchange membrane fuel cells and hydroxide exchange membrane electrolyzers comprising the poly(aryl alkylene) polymers or poly(aryl-crown ether-alkylene) polymers with pendant cationic groups exhibit enhanced performance and durability at relatively high temperatures.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293910
- Patent Number(s):
- 11827743
- Application Number:
- 16/833,312
- Assignee:
- University of Delaware (Newark, DE)
- DOE Contract Number:
- AR0000814
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 03/27/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Yan, Yushan, Hu, Keda, Wang, Junhua, Wang, Lan, Rojas-Carbonell, Santiago, and Setzler, Brian. Polymers having stable cationic pendant groups for use as anion exchange membranes. United States: N. p., 2023.
Web.
Yan, Yushan, Hu, Keda, Wang, Junhua, Wang, Lan, Rojas-Carbonell, Santiago, & Setzler, Brian. Polymers having stable cationic pendant groups for use as anion exchange membranes. United States.
Yan, Yushan, Hu, Keda, Wang, Junhua, Wang, Lan, Rojas-Carbonell, Santiago, and Setzler, Brian. Tue .
"Polymers having stable cationic pendant groups for use as anion exchange membranes". United States. https://www.osti.gov/servlets/purl/2293910.
@article{osti_2293910,
title = {Polymers having stable cationic pendant groups for use as anion exchange membranes},
author = {Yan, Yushan and Hu, Keda and Wang, Junhua and Wang, Lan and Rojas-Carbonell, Santiago and Setzler, Brian},
abstractNote = {Poly(aryl alkylene) polymers or poly(aryl-crown ether-alkylene) polymers with pendant cationic groups are provided which have an alkaline-stable cation, such as imidazolium, introduced into a rigid aromatic polymer backbone free of ether bonds. Hydroxide exchange membranes or hydroxide exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties in an ambient dry state as compared to conventional hydroxide exchange membranes or ionomers. Hydroxide exchange membrane fuel cells and hydroxide exchange membrane electrolyzers comprising the poly(aryl alkylene) polymers or poly(aryl-crown ether-alkylene) polymers with pendant cationic groups exhibit enhanced performance and durability at relatively high temperatures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 28 00:00:00 EST 2023},
month = {Tue Nov 28 00:00:00 EST 2023}
}
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