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Title: | Electrorheological characteristics of polyaniline/titanate composite nanotube suspensions | ||||||||||
Author: | Cheng, Qilin; Pavlínek, Vladimír; He, Ying; Li, Chunzhong; Sáha, Petr | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Colloid and Polymer Science. 2009, vol. 287, issue 4, p. 435-441 | ||||||||||
ISSN: | 0303-402X (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.1007/s00396-008-1985-9 | ||||||||||
Abstract: | In this paper, one-dimensional polyaniline/titanate (PANI/TN) composite nanotubes were synthesized by in situ chemical oxidative polymerization directed by block copolymer. These novel nanocomposite particles were used as a dispersed phase in electrorheological (ER) fluids, and the ER properties were investigated under both steady and dynamic shear. It was found that the ER activity of PANI/ TN fluids varied with the ratio of aniline to titanate, and the PANI/TN suspensions showed a higher ER effect than that made by sphere-like PANI/TiO2 nanoparticles. These observations were well interpreted by their dielectric spectra analysis; a larger dielectric loss enhancement and a faster rate of interfacial polarization were responsible for a higher ER activity of nanotubular PANI/TN-based fluids. | ||||||||||
Full text: | http://www.springerlink.com/content/p1108517g3t52t54/ | ||||||||||
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