Study of Thermally Stimulated Current in Fibrous Poly(DL-Lactic Acid) Films Exhibiting Piezoelectric-Like Behavior

Taiki Nobeshima; Yuya Ishii; Heisuke Sakai; Sei Uemura; Manabu Yoshida

doi:10.2494/photopolymer.28.369

Taiki Nobeshima, Yuya Ishii, Heisuke Sakai, Sei Uemura, Manabu Yoshida

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Keywords: polylactic acid, electrospinning method, thermal stimulated current, piezoelectric-like effect

JOURNAL FREE ACCESS

2015 Volume 28 Issue 3 Pages 369-372

DOI https://doi.org/10.2494/photopolymer.28.369

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Abstract

The TSC measurements obtained in this study indicate that electrospun fibrous PDLLA films exhibit spontaneous polarization, owing to the presence of a strong electric field applied to the PDLLA solution while forming the fibers. However, an amorphous PDLLA film formed by spin-coating did not exhibit any polarization. The unique polarization characteristics exhibited by the electrospun PDLLA film appeared to contribute to its piezoelectric-like properties.

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