Terahertz absorption spectroscopy of poly(ether ether ketone)

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

3 Citations (Scopus)

Abstract

The crystallinity of sheets of poly(ether ether ketone) (PEEK) was changed by thermal treatments conducted at 295 oC for various periods and their terahertz (THz) and Fouriertransform infrared absorption (FT-IR) spectra were obtained. As a result, it has been confirmed that an absorption peak appears at around 3.5 THz in the sheet samples that exhibit clear X-ray diffraction patterns at 20= 18.8, 20.8, 22.8, and 28.8o. In contrast, no obvious sample-dependent changes were observed in FT-IR spectra. The absorption at around 3.5 THz shows a shift in frequency to a degree proportional to the crystallinity. Its maximum intensity is also in proportion to the crystallinity. These results indicate that the absorption at 3.62 THz has a close relation with the crystallinity of PEEK This in turn means that the THz absorption spectroscopy can be used for estimating the crystallinity of PEEK.

Original languageEnglish
Title of host publicationProceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017
PublisherInstitute of Electrical Engineers of Japan
Pages539-542
Number of pages4
Volume2
ISBN (Electronic)9784886860996
DOIs
Publication statusPublished - 2017 Dec 4
Event2017 International Symposium on Electrical Insulating Materials, ISEIM 2017 - Toyohashi, Japan
Duration: 2017 Sep 112017 Sep 15

Other

Other2017 International Symposium on Electrical Insulating Materials, ISEIM 2017
CountryJapan
CityToyohashi
Period17/9/1117/9/15

Fingerprint

Terahertz spectroscopy
Polyether ether ketones
Absorption spectroscopy
Infrared absorption
Absorption spectra
Diffraction patterns
Heat treatment
X ray diffraction

Keywords

  • Crystalline polymer
  • Crystallinity
  • Infrared absorption spectroscopy
  • Non-destructive diagnosis
  • Terahertz time-domain spectroscopy
  • X-ray diffraction

ASJC Scopus subject areas

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

Cite this

Kaneko, T., Hirai, N., & Ohki, Y. (2017). Terahertz absorption spectroscopy of poly(ether ether ketone). In Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017 (Vol. 2, pp. 539-542). Institute of Electrical Engineers of Japan. https://doi.org/10.23919/ISEIM.2017.8166545

Terahertz absorption spectroscopy of poly(ether ether ketone). / Kaneko, Takuya; Hirai, Naoshi; Ohki, Yoshimichi.

Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017. Vol. 2 Institute of Electrical Engineers of Japan, 2017. p. 539-542.

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

Kaneko, T, Hirai, N & Ohki, Y 2017, Terahertz absorption spectroscopy of poly(ether ether ketone). in Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017. vol. 2, Institute of Electrical Engineers of Japan, pp. 539-542, 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017, Toyohashi, Japan, 17/9/11. https://doi.org/10.23919/ISEIM.2017.8166545
Kaneko T, Hirai N, Ohki Y. Terahertz absorption spectroscopy of poly(ether ether ketone). In Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017. Vol. 2. Institute of Electrical Engineers of Japan. 2017. p. 539-542 https://doi.org/10.23919/ISEIM.2017.8166545
Kaneko, Takuya ; Hirai, Naoshi ; Ohki, Yoshimichi. / Terahertz absorption spectroscopy of poly(ether ether ketone). Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017. Vol. 2 Institute of Electrical Engineers of Japan, 2017. pp. 539-542
@inproceedings{1e89e984c04144b28442334f052d1615,
title = "Terahertz absorption spectroscopy of poly(ether ether ketone)",
abstract = "The crystallinity of sheets of poly(ether ether ketone) (PEEK) was changed by thermal treatments conducted at 295 oC for various periods and their terahertz (THz) and Fouriertransform infrared absorption (FT-IR) spectra were obtained. As a result, it has been confirmed that an absorption peak appears at around 3.5 THz in the sheet samples that exhibit clear X-ray diffraction patterns at 20= 18.8, 20.8, 22.8, and 28.8o. In contrast, no obvious sample-dependent changes were observed in FT-IR spectra. The absorption at around 3.5 THz shows a shift in frequency to a degree proportional to the crystallinity. Its maximum intensity is also in proportion to the crystallinity. These results indicate that the absorption at 3.62 THz has a close relation with the crystallinity of PEEK This in turn means that the THz absorption spectroscopy can be used for estimating the crystallinity of PEEK.",
keywords = "Crystalline polymer, Crystallinity, Infrared absorption spectroscopy, Non-destructive diagnosis, Terahertz time-domain spectroscopy, X-ray diffraction",
author = "Takuya Kaneko and Naoshi Hirai and Yoshimichi Ohki",
year = "2017",
month = "12",
day = "4",
doi = "10.23919/ISEIM.2017.8166545",
language = "English",
volume = "2",
pages = "539--542",
booktitle = "Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017",
publisher = "Institute of Electrical Engineers of Japan",

}

TY - GEN

T1 - Terahertz absorption spectroscopy of poly(ether ether ketone)

AU - Kaneko, Takuya

AU - Hirai, Naoshi

AU - Ohki, Yoshimichi

PY - 2017/12/4

Y1 - 2017/12/4

N2 - The crystallinity of sheets of poly(ether ether ketone) (PEEK) was changed by thermal treatments conducted at 295 oC for various periods and their terahertz (THz) and Fouriertransform infrared absorption (FT-IR) spectra were obtained. As a result, it has been confirmed that an absorption peak appears at around 3.5 THz in the sheet samples that exhibit clear X-ray diffraction patterns at 20= 18.8, 20.8, 22.8, and 28.8o. In contrast, no obvious sample-dependent changes were observed in FT-IR spectra. The absorption at around 3.5 THz shows a shift in frequency to a degree proportional to the crystallinity. Its maximum intensity is also in proportion to the crystallinity. These results indicate that the absorption at 3.62 THz has a close relation with the crystallinity of PEEK This in turn means that the THz absorption spectroscopy can be used for estimating the crystallinity of PEEK.

AB - The crystallinity of sheets of poly(ether ether ketone) (PEEK) was changed by thermal treatments conducted at 295 oC for various periods and their terahertz (THz) and Fouriertransform infrared absorption (FT-IR) spectra were obtained. As a result, it has been confirmed that an absorption peak appears at around 3.5 THz in the sheet samples that exhibit clear X-ray diffraction patterns at 20= 18.8, 20.8, 22.8, and 28.8o. In contrast, no obvious sample-dependent changes were observed in FT-IR spectra. The absorption at around 3.5 THz shows a shift in frequency to a degree proportional to the crystallinity. Its maximum intensity is also in proportion to the crystallinity. These results indicate that the absorption at 3.62 THz has a close relation with the crystallinity of PEEK This in turn means that the THz absorption spectroscopy can be used for estimating the crystallinity of PEEK.

KW - Crystalline polymer

KW - Crystallinity

KW - Infrared absorption spectroscopy

KW - Non-destructive diagnosis

KW - Terahertz time-domain spectroscopy

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=85041904991&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041904991&partnerID=8YFLogxK

U2 - 10.23919/ISEIM.2017.8166545

DO - 10.23919/ISEIM.2017.8166545

M3 - Conference contribution

AN - SCOPUS:85041904991

VL - 2

SP - 539

EP - 542

BT - Proceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017

PB - Institute of Electrical Engineers of Japan

ER -