DocumentCode :
153275
Title :
THz and Mid IR fourier transform spectroscopy on polyethylene irradiated with γ-Co60 radiation
Author :
Beckmann, J. ; Schade, Ulrich ; von der Ehe, K. ; Jaunich, M. ; Wolff, D. ; Aziz, E.F.
Author_Institution :
BAM Fed. Inst. for Mater. Res. & Testing, Berlin, Germany
fYear :
2014
fDate :
14-19 Sept. 2014
Firstpage :
1
Lastpage :
2
Abstract :
THz and mid IR spectroscopy of high molecular PE (HMW) and ultra high molecular PE (UHMW) reveals modifications of the molecular structure induced by γ-Co60 radiation. UHMW-PE and HMW-PE can be distinguished. The integral absorption in the B1u THz-region can quantitatively describe the amorphization of crystallinity. The formation of trans vinylene unsaturations and the decay of vinyl can be followed by mid IR spectroscopy.
Keywords :
Fourier transform spectroscopy; infrared spectroscopy; light absorption; molecular electronic states; polymers; terahertz spectroscopy; γ-Co60 radiation; B1u THz-region; HMW; HMW-PE; THz spectroscopy; UHMW-PE; crystallinity amorphization; high molecular PE; integral absorption; midIR Fourier transform spectroscopy; molecular structure modifications; polyethylene; transvinylene unsaturation formation; ultrahigh molecular PE; vinyl decay; Absorption; Polyethylene; Radiation effects; Spectroscopy; Temperature measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
Type :
conf
DOI :
10.1109/IRMMW-THz.2014.6956355
Filename :
6956355
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=153275
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