Title :
Determining the glass transition temperature of polymers with terahertz time-domain spectroscopy
Author :
Wietzke, S. ; Jansen, C. ; Jung, T. ; Chatterjee, S. ; Dempwolf, W. ; Menzel, H. ; Koch, M.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Braunschweig, Braunschweig, Germany
Abstract :
The glass transition temperature Tg of polymers is identified by terahertz time-domain spectroscopy (TDS). The thermo-quasi-optic coefficient noticeably changes in the region of the glass transition. THz TDS can thus serve as a non-destructive and non-contact technique for polymer analysis.
Keywords :
glass transition; nondestructive testing; polymers; terahertz wave spectra; thermo-optical effects; THz TDS; glass transition temperature; noncontact technique; nondestructive technique; polymer analysis; terahertz time-domain spectroscopy; thermo-quasioptic coefficient; Data mining; Glass; Optical polymers; Optical refraction; Optical variables control; Refractive index; Spectroscopy; Temperature dependence; Thermodynamics; Time domain analysis;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324917