Effect of crystallinity on electrical conduction characteristics of poly-L-lactic acid

F. Kato, S. Omori, M. Matsushita, Y. Ohki

研究成果: Conference contribution

5 引用 (Scopus)

抜粋

Effect of crystallinity change on electrical conduction characteristics of poly-L-lactic acid was studied experimentally. The crystallinity was changed by thermal annealing. The lower crystallinity samples have more remaining charge than the higher crystallinity samples. Moreover, at 80 °C that is above their glass transition temperatures (Tg: 55-60 °C), the conductivity is much higher in the lower crystallinity sample than in the higher crystallinity sample. The low crystallinity sample shows two thermally stimulated current (TSC) peaks - one around Tg and the other at a temperature about 20 °C higher than Tg, while the higher crystallinity sample shows only the lower-temperature TSC peak. The TSC peak around Tg is attributable to the micro-Brownian motion that enables orientation of dipoles having the direction perpendicular to the polymer main chains, while the higher-temperature TSC peak seems attributable to the orientation and magnitude change of the end-to-end vector in the polymer main chain.

元の言語English
ホスト出版物のタイトル2006 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ページ15-18
ページ数4
DOI
出版物ステータスPublished - 2006 12 1
イベント2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP - Kansas City, MO, United States
継続期間: 2006 10 152006 10 18

出版物シリーズ

名前Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ISSN(印刷物)0084-9162

Conference

Conference2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
United States
Kansas City, MO
期間06/10/1506/10/18

ASJC Scopus subject areas

  • Engineering(all)

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  • これを引用

    Kato, F., Omori, S., Matsushita, M., & Ohki, Y. (2006). Effect of crystallinity on electrical conduction characteristics of poly-L-lactic acid. : 2006 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 15-18). [4105359] (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP). https://doi.org/10.1109/CEIDP.2006.312051