Analyzing morphology and thermal history of polybutylene terephthalate by THz time-domain spectroscopy
Date
2011
Authors
Wietzke, S.
Reuter, M.
Nestle, N.
Klimov, E.
Zadok, U.
Fischer, B.
Koch, M.
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Journal article
Citation
Journal of Infrared, Millimeter and Terahertz Waves, 2011; 32(7):952-959
Statement of Responsibility
Steffen Wietzke, Marco Reuter, Nikolaus Nestle, Evgueni Klimov, Uri Zadok, Bernd M. Fischer and Martin Koch
Conference Name
Abstract
We have measured the frequency-dependent dielectric function of semicrystalline polybutylene terephthalate (PBT) in the terahertz region between 100 GHz and approximately 2.8 THz. A characteristic band is observed around 2.38 THz. The intensity of this band is a good indicator of the degree of crystallinity of the different samples. A potential assignment of this band is proposed,based on the comparison with spectroscopic data of the structurally very similar polyethylene terephtalate (PET). Furthermore, the frequency-dependent index of refraction of PBT reveals more insight about the morphology and different thermal history of the samples under investigation.
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© Springer Science+Business Media, LLC 2011