[16p-P04-1~20] 12.1 Fabrications and Structure Controls

[16p-P04-18] Structural control and ferroelectric characterization of PVDF thin films prepared using high-boiling amphipathic solvent and uniaxial stretching treatment

〇Yasuko Koshiba^1,2, Sakura Suga¹, Shohei Horike^1,2,3, Masahiro Funahashi^1,2, Kenji Ishida^1,4 (1.Kobe Univ., 2.Res. Ctr. Membrane & Film Tech., Kobe Univ., 3.Ctr. Environ. Mgmt., Kobe Univ., 4.Kyushu Univ.)

Keywords:

organic ferroelectrics,amphipathic solvent,stretching treatment

Polyvinylidene fluoride (PVDF), a ferroelectric polymer, has several crystalline phases. To use PVDF as a ferroelectric polymer, structural control from the type-II crystal phase to the type-I crystal phase is necessary. In this study, we investigated the structural control of PVDF films using a high-boiling point amphiphilic solvent. In addition, films prepared using high-boiling-point amphiphilic solvents were uniaxially stretched. The structural and ferroelectric properties of the PVDF films were also evaluated.