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In situ synthesis of nanocrystalline BaTiO3 particle–polymer hybrid

  • Toshinobu Yogo (a1), Tomoe Yamamoto (a1), Wataru Sakamoto (a1) and Shin-ichi Hirano (a1)

Abstract

Nanocrystalline BaTiO3 particle–polymer hybrid was synthesized by polymerization and hydrolysis of [2-(methacryloxy)ethoxy]triisopropoxytitanium (MEPT) and barium alkoxide. The precursor for hybrid was synthesized from prepolymerized MEPT and barium alkokide, which was then hydrolyzed to form BaTiO3 particle–polymer hybrids below 100 °C. BaTiO3 particles increased in crystallinity when the amount of water for hydrolysis increased. The nanocrystalline particles were identified to be BaTiO3 by electron diffraction. Nanometer-sized BaTiO3 particle–polymer hybrid was shaped to a film with a dielectric constant of 8.2 at 10 kHz. A suspension consisting of the hybrid and silicone oil responded to a direct-current field, exhibiting a typical electrorheological behavior.

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a) Address all correspondence to this author. e-mail: yogo@cirse.nagoya-u.ac.jp

References

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Keywords

In situ synthesis of nanocrystalline BaTiO3 particle–polymer hybrid

  • Toshinobu Yogo (a1), Tomoe Yamamoto (a1), Wataru Sakamoto (a1) and Shin-ichi Hirano (a1)

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