Synthesis,Characterization and Electrorheological Properties of Polyindene/Kaolinite Composites |
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| Authors: | Cigdem Eristi Mustafa Yavuz Hasim Yilmaz Bekir Sari |
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| Affiliation: | 1. Science Faculty, Chemistry Department , Gazi University , Ankara, Turkey;2. Science Faculty, Chemistry Department , Suleyman Demirel University , Isparta, Turkey;3. Science Faculty, Chemistry Department , Harran University , Sanliurfa, Turkey |
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| Abstract: | In this study, synthesis, characterization and electrorheological (ER) properties of polyindene (PIN) and polyindene/kaolinite composites were carried out by cationic radical polymerization using FeCl3 as the oxidizing agent. The homopolymer and composites, containing different amounts of PIN were characterized by FTIR spectroscopy, thermo‐gravimetric (TGA) analyses, scanning electron microscopy (SEM) and dynamic light scattering (DLS) methods. The conductivity and dielectric properties of PIN and PIN/kaolinite composites were determined. Suspensions of PIN and PIN/kaolinite composites were prepared in silicone oil (SO), at a series of concentrations (c=5–25 m/m %). The effects of concentration, shear rate, electric field strength, frequency, temperature and promoter on ER activities of suspensions were investigated. |
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| Keywords: | polyindene polyindene/kaolinite conducting composites electrorheological fluids |
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