Synthesis and investigation of random-structured ionomers with highly sulfonated multi-phenyl pendants for electrochemical applications
- Title
- Synthesis and investigation of random-structured ionomers with highly sulfonated multi-phenyl pendants for electrochemical applications
- Author
- 오성근
- Keywords
- Polymer electrolyte; Membrane; Fuel cell; Ion exchange Membrane; Colon coupling reaction
- Issue Date
- 2016-07
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v. 510, Page. 326-337
- Abstract
- Poly(p-phenylene)-based random copolymers with locally and densely sulfonated multi-phenyl pendants, which are promising candidates for hydrocarbon -based electrolyte membrane materials for fuel cells, were synthesized using Ni(0)-catalyzed cross-coupling polymerization. The synthesized ionomers, SPPFPB-o, showed outstanding dimensional changes and proton conductivity. The SPPFPB-5.5 membrane in particular had the highest ion exchange capacity (IEC) (2.58 meq/g) among the SPPFPB-o series. It exhibited smaller dimensional changes toward the in-plane direction (Delta l) than that of the Nafion (R) 212 membrane, in spite of a higher water uptake (WU) value, which seemed to be derived from the rigid backbone structure. Moreover, the SPPFPB-5.5 membrane showed excellent fuel cell performance and long-term stability comparable or superior to those of Nafion (R) 212 under fully and partially hydrated conditions. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0376738816301466?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/74371
- ISSN
- 0376-7388; 1873-3123
- DOI
- 10.1016/j.memsci.2016.03.018
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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