[17p-B3-1~18] 6.1 Ferroelectric thin films

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-B3-2] Piezoelectric properties of polyvinylidene cyanide (VDCN) / vinyl acetate (VAc) copolymer induced by rapid polarization freezing

〇(M2)Kosei Yoshitake¹, Hidekazu Kodama², Takashi Nakajima¹ (1.Tokyo Univ. of Sci, 2.Kobayasi Inst.)

Keywords:

piezoelectric polymer,polarization freezing

Polyvinylidene cyanide / vinyl acetate (VDCN/VAc) copolymer is a polar polymer that exhibits piezoelectricity when polarization is frozen by cooling while applying a high electric field. Amorphous nature provides excellent flexibility and moldability, and it is expected to be used for piezoelectric applications. On the other hand, applying a larger electric field and polarization freezing is the key to improving piezoelectricity. In this study, we developed a rapid freezing method while applying a high electric field and evaluated the piezoelectric properties of VDCN/VAc copolymers.