Abstract
With the expanding application of capacitors, thermal resistant dielectric materials are in high demand due to the increasing harsh environments where the capacitors are needed and the heat generated by the capacitors. Herein, we present polyarylene ether nitrile and titanium dioxide hybrids which can be used as thermal resistant dielectrics for these capacitors. Phthalonitrile modified titanium dioxide (TiO2-CN) and phthalonitrile end-capped polyarylene ether nitrile (PEN-Ph) are firstly prepared. After being cast into TiO2-CN/PEN nanocomposite films, these composites self-crosslink upon heating at 320 °C for 4 h, forming the polyarylene ether nitrile and titanium dioxide hybrids (TiO2-PEN). Improved dielectric constants which are stable from room temperature to 200 °C of these hybrids are observed, indicating the potential application of the hybrids as thermal resistant dielectrics.
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This work was financially supported by the National Natural Science Foundation of China (No. 51773028).
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Wei, RB., Zhan, CH., Yang, Y. et al. Polyarylene Ether Nitrile and Titanium Dioxide Hybrids as Thermal Resistant Dielectrics. Chin J Polym Sci 39, 211–218 (2021). https://doi.org/10.1007/s10118-020-2481-z
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DOI: https://doi.org/10.1007/s10118-020-2481-z