Radiothermoluminescence and Transitions in Polymers |
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Page 71
... frequency of a free or loaded sample . If no additional mass is present , the total mass of the system is that of the sample . In this case , the resonant frequency is dependent on sample dimensions and density . The resonance vibration ...
... frequency of a free or loaded sample . If no additional mass is present , the total mass of the system is that of the sample . In this case , the resonant frequency is dependent on sample dimensions and density . The resonance vibration ...
Page 72
... frequency and temperature . However , many nominally nonpolar materials contain traces of polar impurities . These impurities have relatively little effect on the dielec- tric constant , but they do increase the dissipation factor . For ...
... frequency and temperature . However , many nominally nonpolar materials contain traces of polar impurities . These impurities have relatively little effect on the dielec- tric constant , but they do increase the dissipation factor . For ...
Page 77
... frequency ) were observed for several other polymers , such as polymethyl methacrylate and polystyrene . To characterize frequency response , a frequency - sensitivity factor ( FSF ) was defined as the multiple by which the FCP rate ...
... frequency ) were observed for several other polymers , such as polymethyl methacrylate and polystyrene . To characterize frequency response , a frequency - sensitivity factor ( FSF ) was defined as the multiple by which the FCP rate ...
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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 |