Analyzing Morphology and Thermal History of Polybutylene Terephthalate by THz Time-domain Spectroscopy
We have measured the frequency-dependent dielectric function of semi-crystalline 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 crys...
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Published in | Journal of infrared, millimeter and terahertz waves Vol. 32; no. 7; pp. 952 - 959 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Boston
Springer US
01.07.2011
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | We have measured the frequency-dependent dielectric function of semi-crystalline 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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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1866-6892 1866-6906 |
DOI: | 10.1007/s10762-011-9810-9 |