| Project/Area Number |
23360142
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Waseda University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TAKEDA Kyozaburo 早稲田大学, 理工学術院, 教授 (40277851)
HIRAI Naoshi 早稲田大学, 理工学術院, 講師 (30329122)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKUNAGA Kaori 独立行政法人情報通信研究機構, 電磁波計測研究センター, 研究マネージャー (20358956)
MIZUNO Maya 独立行政法人情報通信研究機構, 電磁波計測研究センター, 研究員 (90360643)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2011: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Keywords | 誘電体 / エポキシ樹脂 / ポリマーナノコンポジット / テラヘルツ時間領域分光 / 複素誘電率 / 誘電損率 / 熱伝導性 / ポリジシクロペンタジエン / イオンマイグレーション / 誘電・磁性体 |
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| Research Abstract |
We have demonstrated that the resistance against electrochemical migration of epoxy resin used as a printed wiring board can be improved by adding a small amount of silica nanofillers. Three patents were submitted based on this result. Next, iron nanoparticles were filled into epoxy resin, which resulted in the development of insulating materials with low eddy-current loss, high permittivity, and high permeability.
Complex electric modulus is the inverse of complex permittivity. Relaxation phenomena due to charge transport in polymer, which are dominant in a low frequency range, become evident by showing frequency-dependent electric modulus spectra. We have done this analysis for various polymers, and the results were summarized in papers, which are now under review. Time-domain spectroscopic measurements at THz frequencies were also done for several polymers, and the results were analyzed by quantum chemical calculations.
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