Radiothermoluminescence and Transitions in Polymers |
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Page 21
... decay of trapped electrons in terms of a model consisting of various populations of trapped electrons that are relatively stable toward decay until the temperature is raised to a point where they become vulnerable [ 3 ] . The activation ...
... decay of trapped electrons in terms of a model consisting of various populations of trapped electrons that are relatively stable toward decay until the temperature is raised to a point where they become vulnerable [ 3 ] . The activation ...
Page 36
... decay in this case is given by I = l / ( 1 + VI , Kt ) ( 3.27 ) Simple exponential decay and a power - law decay Ixt - 2 which one would expect , respectively , for first- and second - order recombination kinetics with a single trap ...
... decay in this case is given by I = l / ( 1 + VI , Kt ) ( 3.27 ) Simple exponential decay and a power - law decay Ixt - 2 which one would expect , respectively , for first- and second - order recombination kinetics with a single trap ...
Page 50
... decay has been split into two exponential components whose magnitudes and decay rates are depen- dent on the external field and the width of the electron trap . At t = 0 , the ratio of intensities with and without the external field ...
... decay has been split into two exponential components whose magnitudes and decay rates are depen- dent on the external field and the width of the electron trap . At t = 0 , the ratio of intensities with and without the external field ...
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Common terms and phrases
activation energy annealing atactic atoms blend changes charge Charlesby Chem chemical cis-polybutadiene components concentration constant cooling copolymer cross-linking crystal decay decrease density depends dielectric distribution dose E/kT electron affinity electron traps emission entropy equilibrium evaluation excited molecules factor first-order fluorescence fraction free volume frequency frequency factor glass glass-transition temperature glow curve glow peak grafting heating increase INTENSITY relative units interaction interfacial intersystem crossing interzonal ionization irradiation isotactic kinetic linear low-temperature luminescence centers LUMINESCENCE INTENSITY relative Macromolecules material maxima maximum mechanical melting method molecular motion molecules Nikolskii nuclear magnetic resonance observed occur oxygen phase phosphorescence Phys polybutadiene polyethylene samples polyisobutylene polypropylene polystyrene position quenching radiation radicals radiothermoluminescence reaction recombination relaxation transitions room temperature secondary relaxation semicrystalline semicrystalline polymers spectra spectroscopy structure temperature thermal thermodynamic thermoluminescence thermoluminescence peaks tion transition temperature trapped electrons untrapping vibrational vinyl vulcanization whereas Zlatkevich
References to this book
Polymer Surfaces and Interfaces II, Volume 2 W. J. Feast,H. S. Munro,R. W. Richards Snippet view - 1993 |