Radiothermoluminescence and Transitions in Polymers |
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Page 59
... relaxation . For a simple relaxation system ( small structural elements and low interaction ener- gies ) , changes provided by the thermal motion in an internal parameter p are propor- tional to the value of ... Relaxation Transitions 59.
... relaxation . For a simple relaxation system ( small structural elements and low interaction ener- gies ) , changes provided by the thermal motion in an internal parameter p are propor- tional to the value of ... Relaxation Transitions 59.
Page 60
... relaxation time , and vice versa . Thus , in order to observe small variations in the position of the relaxation transition ( 10–15 ° C ) , the cooling rate must be changed by several orders of magnitude . In some cases it is suitable ...
... relaxation time , and vice versa . Thus , in order to observe small variations in the position of the relaxation transition ( 10–15 ° C ) , the cooling rate must be changed by several orders of magnitude . In some cases it is suitable ...
Page 61
Lev Zlatkevich. 4.2.2 Glass Transition The glass transition Tg is one of the most important transitions in polymers . From a molecular point of view , it has been widely accepted for many years that glass - rubber relaxation results from ...
Lev Zlatkevich. 4.2.2 Glass Transition The glass transition Tg is one of the most important transitions in polymers . From a molecular point of view , it has been widely accepted for many years that glass - rubber relaxation results from ...
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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 |