Effect of temperature and moisture on electrical conductivity in polyaniline/polyurethane (PANI/PU) blends |
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| Affiliation: | 1. Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa City, Yamagata Prefecture 992-8510, Japan;2. Material Technology Research and Development Laboratories, Tokai Rubber Industries, Ltd., 1 Higashi 3-chome, Komaki City, Aichi Prefecture 485-8550, Japan;1. Design & Synthesis of Organic Semiconductors (DSOS), Institute for Materials Research (IMO-IMOMEC), Hasselt University, Agoralaan 1 – Building D, B-3590 Diepenbeek, Belgium;2. Physical Chemistry and Polymer Science (FYSC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium;3. Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter Division (BSMA), Place Pasteur 1, 1348 Louvain-la-Neuve, Belgium;4. Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany;5. IMOMEC Assoc. Lab., IMEC, Universitaire Campus – Wetenschapspark 1, B-3590 Diepenbeek, Belgium;3. Physics Division, Faculty of Science, Cairo University, Egypt;1. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, PR China;2. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China;1. M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia;2. M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA - Russian Technological University, 119454 Moscow, Russia;3. National Research Centre “Kurchatov Institute”, Russia;1. Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology, Tehran, Iran;2. Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1315685981, Iran |
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| Abstract: | Miscible blend of conductive polyaniline/polyurethane (PANI/PU) showed preferable electrical property at low percolation threshold compared to immiscible blend of PANI/polystyrene-isoprene-copolymer (PANI/SIS) and carbon black/PU composite (CB/PU). The time dependence of the electrical conductivity was investigated with these samples aged under different humidity and temperatures. The electrical conductivity of PANI/PU (11.5/88.5, v/v) decreased with aging time and the morphology changed with time in the coexistence of high moisture and high temperature. After the aging treatment, the film of the miscible blend was re-dissolved and re-cast. The morphology and electrical conductivity were found to recover to the same state as the original film. In addition, the recovery mechanism of the morphology and the conductivity was also proposed here. |
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