Radiothermoluminescence and Transitions in Polymers |
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Page 55
... exhibit maxima . In the most common sense , a transition can be defined as the existence of a maximum of a certain property or its derivative at a certain temperature . The max- imum can be very pronounced ( up to discontinuity ) , or ...
... exhibit maxima . In the most common sense , a transition can be defined as the existence of a maximum of a certain property or its derivative at a certain temperature . The max- imum can be very pronounced ( up to discontinuity ) , or ...
Page 126
... exhibit a transition in the same temperature region as the y transition in polyethyl- enes . Finally , the glow curves for both high - density and low - density polyethylene blown film samples showed a significant decrease in the ...
... exhibit a transition in the same temperature region as the y transition in polyethyl- enes . Finally , the glow curves for both high - density and low - density polyethylene blown film samples showed a significant decrease in the ...
Page 149
... exhibits glass relaxation and secondary re- laxation around 260 and 220 K , respectively . It is still unclear ... exhibit both amorphous and crystalline transitions [ 90 ] . Thus any studies on polypropylene relaxation have to be ...
... exhibits glass relaxation and secondary re- laxation around 260 and 220 K , respectively . It is still unclear ... exhibit both amorphous and crystalline transitions [ 90 ] . Thus any studies on polypropylene relaxation have to be ...
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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 |