Flexible magnetic copolymer films with high decomposition temperature and stable dielectric properties |
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| Authors: | Junji Wei Hailong Tang Xiaobo Liu |
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| Affiliation: | 1. Research Branch of Functional Materials, Institute of Microelectronics and Solid State Electronics, High-Temperature Resistant Polymers and Composites Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China
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| Abstract: | Two novel kinds of flexible magnetic copolymer films were prepared via copolymerization using magnetic ferrocenyl prepolymer (MFP) and poly(arylene ether nitrile)s with bisphthalonitrile functional group. Two types of poly(arylene ether nitrile)s with bisphthalonitrile functional group were used and two series of flexible magnetic copolymer film with different structure were obtained. The magnetic properties of copolymer films indicated that the films were soft magnetic. Moreover, it was also concluded that the magnetic properties of magnetic films prepared from phthalonitrile terminated poly(arylene ether nitrile)s were higher than that of magnetic films prepared from poly(arylene ether nitrile)s with pendant phthalonitriles at the same content of MFP. The results of thermogravimetry showed that the all of the copolymer films possessed high decomposition temperature. Like the magnetism, the dielectric constant and dielectric loss of films obtained from phthalonitrile terminated poly(arylene ether nitrile)s were also higher than that of films obtained from poly(arylene ether nitrile)s with pendant phthalonitriles. |
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