Morphological analyses of polybutylene terephthalate by terahertz time-domain spectroscopy
Date
2011
Authors
Fischer, B.
Wietzke, S.
Reuter, M.
Nestle, N.
Klimov, E.
Koch, M.
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Conference paper
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Proceedings of the 36th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), held in Houston, Texas, 2-7 October, 2011: pp.1-6
Statement of Responsibility
Bernd M. Fischer, Steffen Wietzke, Marco Reuter, Nikolaus Nestle, Evgueni Klimov and Martin Koch
Conference Name
International Conference on Infrared, Millimeter and Terahertz Waves (36th : 2011 : Houston, Texas)
Abstract
A characteristic feature around 2.38 THz in the real and the imaginary part of the permittivity or alternatively the absorption coefficient and refraction index is a good indicator of the degree of crystallinity in polybutylene terephthalate (PBT). We assign this spectral feature to macromolecular origin, based on the comparison with polyethylene terephthalate (PET). Furthermore, the refractive index behavior reveals more insight about the morphology affected by thermal treatment of the samples under test.
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© 2011 IEEE