Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations

M. Hosobuchi, M. Komatsu, X. Xie, Y. Cheng, Yukio Furukawa, Yoshimichi Ohki, M. Mizuno, K. Fukunaga

    研究成果: Conference contribution

    3 引用 (Scopus)

    抄録

    Electrical insulation properties of low density polyethylene (LDPE) are still unclear, especially when it is degraded. In this regard, ultraviolet (UV) photons were irradiated to LDPE sheets at room temperature and 85°C and their absorption spectra were measured at frequencies from 0.5 to 3.0 THz and from 18 to 105 THz. A very broad absorption band with its peak at around 1.6 THz appears by the UV irradiation. In accord with this appearance, the infrared absorption peak due to a carbonyl structure increases. Quantum chemical calculations were carried out using 3-dimensional models with and without carbonyl groups. As a result, the model with carbonyl groups was found to have optically active modes at about 1.7 THz. From these results, the increase in absorption at 1.6 THz is assumed to be induced by oxidation.

    元の言語English
    ホスト出版物のタイトルAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    ページ1046-1049
    ページ数4
    DOI
    出版物ステータスPublished - 2013
    イベント2013 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2013 - Shenzhen
    継続期間: 2013 10 202013 10 23

    Other

    Other2013 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2013
    Shenzhen
    期間13/10/2013/10/23

    Fingerprint

    Low density polyethylenes
    Polyethylene
    Polyethylenes
    Absorption spectra
    Infrared absorption
    Insulation
    Photons
    Irradiation
    Oxidation
    Temperature

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

    これを引用

    Hosobuchi, M., Komatsu, M., Xie, X., Cheng, Y., Furukawa, Y., Ohki, Y., ... Fukunaga, K. (2013). Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations. : Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 1046-1049). [6747437] https://doi.org/10.1109/CEIDP.2013.6747437

    Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations. / Hosobuchi, M.; Komatsu, M.; Xie, X.; Cheng, Y.; Furukawa, Yukio; Ohki, Yoshimichi; Mizuno, M.; Fukunaga, K.

    Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2013. p. 1046-1049 6747437.

    研究成果: Conference contribution

    Hosobuchi, M, Komatsu, M, Xie, X, Cheng, Y, Furukawa, Y, Ohki, Y, Mizuno, M & Fukunaga, K 2013, Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations. : Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP., 6747437, pp. 1046-1049, 2013 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2013, Shenzhen, 13/10/20. https://doi.org/10.1109/CEIDP.2013.6747437
    Hosobuchi M, Komatsu M, Xie X, Cheng Y, Furukawa Y, Ohki Y その他. Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations. : Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2013. p. 1046-1049. 6747437 https://doi.org/10.1109/CEIDP.2013.6747437
    Hosobuchi, M. ; Komatsu, M. ; Xie, X. ; Cheng, Y. ; Furukawa, Yukio ; Ohki, Yoshimichi ; Mizuno, M. ; Fukunaga, K. / Measurements of THz absorption peaks in photo-degraded polyethylene and their assignment by quantum chemical calculations. Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2013. pp. 1046-1049
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    AU - Xie, X.

    AU - Cheng, Y.

    AU - Furukawa, Yukio

    AU - Ohki, Yoshimichi

    AU - Mizuno, M.

    AU - Fukunaga, K.

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