| Project/Area Number |
18K19111
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 35:Polymers, organic materials, and related fields
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| Research Institution | University of Yamanashi |
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Principal Investigator |
MIYATAKE Kenji 山梨大学, 大学院総合研究部, 教授 (50277761)
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| Project Period (FY) |
2018-06-29 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | ポリフェニレン / イオノマー / 高分子薄膜 / イオン伝導 |
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| Outline of Final Research Achievements |
We found that a new and simple version of sulfonated polyphenylene (SPP-QP) with no extra substituents provided thin membranes with bendability, high proton conductivity, high gas barrier property, and excellent chemical stability. In the present study, we investigated simpler, more cost-effective synthetic strategy for highly stable, proton conductive polyphenylene membranes is reported. The title polyphenylene ionomer (SPP-BP) from dichlorobenzenesulfonic acid and dichlorobiphenyls. The SPP-BP membrane with optimized m-biphenylene/p-biphenylene ratio for hydrophobic moiety exhibited outstanding chemical stability as well as high proton conductivity under a wide range of the humidity.
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| Academic Significance and Societal Importance of the Research Achievements |
芳香族高分子にイオン性基を導入する研究は国内外で活発に行われているが、高イオン導電率と化学安定性を共に満たす柔軟な薄膜材料は見出されていない。本研究では研究代表者が開発に成功したポリフェニレンイオノマーの物性と構造を詳細に解析し、イオン導電性高分子薄膜における課題の解決法を提案できた。特に、燃料電池や水電解システムなど水素社会の中核技術に成り得る成果を得ることができた。学術的には、高分子化学・電気化学・材料化学の境界を跨ぐ学問領域を切り拓く意義を有している。
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