Radiothermoluminescence and Transitions in Polymers |
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Page 48
... luminescence constant at liquid nitrogen temperature , to give 1 / αT - 1 / α77 = α exp ( − W / kT ) ( 3.48 ) Since the luminescence intensity is proportional to luminescence constant , Eq . ( 3.48 ) can be expressed by utilizing some ...
... luminescence constant at liquid nitrogen temperature , to give 1 / αT - 1 / α77 = α exp ( − W / kT ) ( 3.48 ) Since the luminescence intensity is proportional to luminescence constant , Eq . ( 3.48 ) can be expressed by utilizing some ...
Page 93
... luminescence intensity reaches a maximum , cooling as rapidly as possible to a temperature well below that of the maximum , and then reheating until the intensity again reaches a maximum . The process is repeated until the intensity ...
... luminescence intensity reaches a maximum , cooling as rapidly as possible to a temperature well below that of the maximum , and then reheating until the intensity again reaches a maximum . The process is repeated until the intensity ...
Page 186
... thermoluminescence maximum by 15-20 degrees , while the luminescence intensity decreases by a factor of 8–10 . This indicates relatively uniform grafting of numerous relatively short pol- ystyrene chains throughout the volume of the ...
... thermoluminescence maximum by 15-20 degrees , while the luminescence intensity decreases by a factor of 8–10 . This indicates relatively uniform grafting of numerous relatively short pol- ystyrene chains throughout the volume of the ...
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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 |