Title :
Frequency shifts of IR bands sensitive to dipole orientation in PVDF during poling
Author :
Büchtemann, Andreas ; Müller, Ingolf ; Kunstle, Wolfgang ; Stark, Wolfgang
Author_Institution :
Inst. of Polymer Chem. ´´Erich Correns´´, Teltow-Seehof, Germany
Abstract :
On the basis of a mechanical model of a vibrating CF2-group under the influence of an electric field it is shown that the evaluation of band frequencies makes it possible to discriminate between dipole orientation angles θ and θ+π. The field-induced frequency changes experimentally found can be explained by the model in connection with dipole reorientation caused by the field
Keywords :
dielectric polarisation; electrets; infrared spectra of organic molecules and substances; polymers; IR bands; PVDF during poling; band frequencies; dipole orientation; electret; field-induced frequency changes; vibrating CF2-group; Crystalline materials; Crystallization; Electromagnetic wave absorption; Frequency measurement; Hysteresis; Infrared spectra; Manufacturing; Spectroscopy; Vibrations; Voltage;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167252
