Observation of crystal growth in polyethylene naphthalate by terahertz spectroscopy

D. Odaka, M. Komatsu, Yoshimichi Ohki

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Various properties of polyethylene naphthalate (PEN) are affected by its crystallinity. In this paper, the possibility of using terahertz (THz) spectroscopy as a tool to examine the crystallinity of PEN is studied. When THz absorption is measured while the sample temperature is being raised, an absorption peak suddenly appears at around 2.10 THz at 180 °C. By analyzing the THz spectra together with XRD patterns, we found that the 2.10-THz absorption has a close relation with the crystal form α of PEN and its intensity increases with the progress of crystallization. Therefore, THz absorption spectroscopy can be used for monitoring the crystallization of PEN.

    Original languageEnglish
    Title of host publicationProceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages593-596
    Number of pages4
    Volume1
    ISBN (Electronic)9781509028023
    DOIs
    Publication statusPublished - 2016 Aug 18
    Event1st IEEE International Conference on Dielectrics, ICD 2016 - Montpellier, France
    Duration: 2016 Jul 32016 Jul 7

    Other

    Other1st IEEE International Conference on Dielectrics, ICD 2016
    CountryFrance
    CityMontpellier
    Period16/7/316/7/7

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    Keywords

    • Crystallinity
    • Polyethylene naphthalete
    • Terahertz spectroscopy
    • X-ray diffraction

    ASJC Scopus subject areas

    • Polymers and Plastics
    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering
    • Ceramics and Composites

    Cite this

    Odaka, D., Komatsu, M., & Ohki, Y. (2016). Observation of crystal growth in polyethylene naphthalate by terahertz spectroscopy. In Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016 (Vol. 1, pp. 593-596). [7547674] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICD.2016.7547674