LAPSE:2018.1004
Published Article
LAPSE:2018.1004
Preparation and Characterization of Tetra-Imidazolium Hydroxide Polyphenylene Membranes via Nickel Catalyzed C⁻C Coupling Polymerization
Hohyoun Jang, Soonho Lee, Jaeseong Ha, Kunyoung Choi, Taewook Ryu, Kyunghwan Kim, Heung-Seok Jeon, Whangi Kim
November 27, 2018
Imidazolium hydroxide anion exchange membranes functionalized with conjugated tetraphenylethylene moieties were synthesized via Ni(0) catalyzed polymerization by sequential chloromethylation, substitution with imidazoliums and ion exchange. Moreover, with their pendant benzoyl groups the copolymers showed high molecular weight, durability, thermo-oxidative stability, high solubility in polar aprotic solvents and strong chemical and thermal stability in comparison to alkyl quaternary ammonium-functionalized polymers. The proposed polymer membranes, without ether linkages, demonstrated improved performance in ion exchange capacity, water uptake, ion conductivity, and thermal stability. The polymer membranes were studied by ¹H-NMR (Nuclear Magnetic Resonance) spectroscopy, thermogravimetric analysis, water uptake, ion exchange capacity and ion conductivity. Surface morphologies were assessed by atomic force microscope (AFM). The synthesized polymers may have applications as fuel cell membranes because of their excellent ion conductivity.
Keywords
alkaline fuel cell, anion exchange membrane, imidazolium, nickel catalyst, polyphenylene
Subject
Suggested Citation
Jang H, Lee S, Ha J, Choi K, Ryu T, Kim K, Jeon HS, Kim W. Preparation and Characterization of Tetra-Imidazolium Hydroxide Polyphenylene Membranes via Nickel Catalyzed C⁻C Coupling Polymerization. (2018). LAPSE:2018.1004
Author Affiliations
Jang H: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Lee S: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Ha J: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Choi K: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Ryu T: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Kim K: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea
Jeon HS: Department of Computer Engineering, Konkuk University, Chungju 380-701, Korea
Kim W: Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea [ORCID]
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Journal Name
Energies
Volume
9
Issue
4
Article Number
E271
Year
2016
Publication Date
2016-04-06
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9040271, Publication Type: Journal Article
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LAPSE:2018.1004
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doi:10.3390/en9040271
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Nov 27, 2018
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CC BY 4.0
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Nov 27, 2018
 
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Nov 27, 2018
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Calvin Tsay
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