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Fangxiao Guan, Lianyun Yang, Jing Wang, Bing Guan, Kuo Han, Qing Wang and Lei Zhu Confined Ferroelectric Properties in Poly(Vinylidene Fluoride-co-Chlorotrifluoroethylene)-graft-Polystyrene Graft Copolymers for Electric Energy Storage Applications Advanced Functional Materials 21

Version of Record online: 15 JUL 2011 | DOI: 10.1002/adfm.201002015

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Confined ferroelectric properties are observed in a series of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-polystyrene graft copolymers [P(VDF-CTFE)-g-PS]. Both high energy density and low dielectric/ferroelectric losses are achieved simultaneously for a hot-pressed P(VDF-CTFE)-g-PS graft copolymer film with 34 wt-% PS. This is attributed to a low polarizability PS-rich layer at the amorphous–crystalline interface, confining the ferroelectric PVDF crystal.

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