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題名: | Conductivity and Thermopower of Blends of Polyaniline with Insulating Polymers(PETG and PMMA) |
作者: | Subramaniam, C. K.;Kaiser, A. B.;Gilberd, P. W.;Liu, Chia-Jyi;Wessling, B. |
貢獻者: | 物理學系 |
關鍵詞: | A. polymers;D. electronic transport |
日期: | 1996-01
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上傳時間: | 2012-09-10T06:13:00Z
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出版者: | Elsevier |
摘要: | We have measured the temperature dependence of the conductivity and thermoelectric power of conducting polyaniline (PAni) dispersed in PETG copolyester and in poly(methylmethacrylate) (PMMA). Near room temperature, the blends (like unblended PAni) show a change to metallic sign for the conductivity temperature dependence, whereas this sign change does not occur for the blends. As temperature decreases, the blends show a much smaller decrease of conductivity than the blends and even unblended PAni. A simple model involving metallic conduction in addition to tunnelling between metallic particles can give a good account of all the conductivity data. The thermopower of all the blends is small and increases as temperature increases. |
關聯: | Solid State Communications, 97(3): 235-238 |
顯示於類別: | [物理學系] 期刊論文
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