Fabrication of imidazolium-based poly(ionic liquid) microspheres and their electrorheological responses
| Autor: | Zhenlin Zhang, Zhigang Zhang, Meng Wang, Bo Nan Hao, Ying Dan Liu, Hongyang Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Dispersion polymerization
Materials science Tetrafluoroborate Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silicone oil 0104 chemical sciences Electrorheological fluid Shear rate chemistry.chemical_compound chemistry Rheology Chemical engineering Mechanics of Materials Ionic liquid Newtonian fluid General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Journal of Materials Science. 52:5778-5787 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-017-0812-4 |
| Popis: | Imidazolium-based poly(ionic liquid) (PIL) microspheres of poly(1-butyl-3-vinylimidazolium tetrafluoroborate) (P[C4VIm][BF4]) were synthesized through a dispersion polymerization process, which was confirmed by 1H NMR, FT-IR and SEM. Rheological measurement at different electric field strengths indicated that the P[C4VIm][BF4] microspheres in dimethyl silicone oil (15 wt%) showed typical electrorheological (ER) performances including steady flow curves over the entire shear rate range. The ER fluid performed like a Newtonian fluid with very low shear viscosity at zero electric field, which implied the good affinity of the PIL particles with silicone oil. From the ER result, it is worth remarking that the good ER activity of the P[C4VIm][BF4]-based ER fluid is due to the high-density ion parts which can induce strong interfacial polarization. |
| Databáze: | OpenAIRE |
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