Title :
Electron spin resonance and microwave absorption spectroscopy of polymers
Author :
Qingxun, Zhao ; Kaixi, Zhang
Author_Institution :
Dept. of Phys., Hebei Univ., Baoding, China
Abstract :
Using microwave absorption spectroscopy and the theory of electrons and phonons, the matrix element of the interaction Hamiltonian taken between the initial state and the final state of a polymer chain system has been established and electron spin resonance spectroscopy for microwave absorption are discussed from point group theory. In constant frequency intensity calculations, our result, for polyisobutene, is in agreement with experimental measurement
Keywords :
electron-phonon interactions; fracture; group theory; microwave spectra; paramagnetic resonance; polymers; spectral line intensity; ESR spectra; constant frequency intensity calculations; electron spin resonance; electron-phonon interaction; final state; initial state; interaction Hamiltonian; matrix element; microwave absorption spectra; point group theory; polyisobutene; polymer chain system; polymers; Electromagnetic wave absorption; Internal stresses; Kinetic theory; Microwave theory and techniques; Morphology; Paramagnetic resonance; Polymers; Spectroscopy; Temperature dependence; Thermal stresses;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000
Conference_Location :
Beijing
Print_ISBN :
0-7803-5743-4
DOI :
10.1109/ICMMT.2000.895635
