Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/71990
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Type: Journal article
Title: Analyzing morphology and thermal history of polybutylene terephthalate by THz time-domain spectroscopy
Author: Wietzke, S.
Reuter, M.
Nestle, N.
Klimov, E.
Zadok, U.
Fischer, B.
Koch, M.
Citation: Journal of Infrared, Millimeter and Terehertz Waves, 2011; 32(7):952-959
Publisher: Springer
Issue Date: 2011
ISSN: 1866-6892
1866-6906
Statement of
Responsibility: 
Steffen Wietzke, Marco Reuter, Nikolaus Nestle, Evgueni Klimov, Uri Zadok, Bernd M. Fischer and Martin Koch
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.
Keywords: Terahertz time-domain spectroscopy; polybutylene terephthalate; PBT; degree of crystallinity; morphology; structure; macromolecule; index of refraction; refractive index; absorption coefficient; thermal history; amorphous domains; semi-crystalline polymer; non-destructive; analysis
Rights: © Springer Science+Business Media, LLC 2011
RMID: 0020119036
DOI: 10.1007/s10762-011-9810-9
Appears in Collections:Electrical and Electronic Engineering publications

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