Radiothermoluminescence and Transitions in Polymers |
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Page 51
... crystal is heated , electrons are released from their traps by thermal activation and migrate through the crystal until they again become trapped or recombine either with positive holes trapped at different sites or with luminescence ...
... crystal is heated , electrons are released from their traps by thermal activation and migrate through the crystal until they again become trapped or recombine either with positive holes trapped at different sites or with luminescence ...
Page 118
... crystal ; ( c ) finely crystal- line sample formed by rapid crystallization of the supercooled liquid ; ( d ) two - phase amor- phous - crystalline sample ( 15-20 % amorphous phase ) [ 40 ] . crystalline structure are reflected by ...
... crystal ; ( c ) finely crystal- line sample formed by rapid crystallization of the supercooled liquid ; ( d ) two - phase amor- phous - crystalline sample ( 15-20 % amorphous phase ) [ 40 ] . crystalline structure are reflected by ...
Page 120
... crystal- line lamellae in random or as loose loops or regular , tight loops . There is ample evidence that a spectrum of " degrees of order " exists in polymers that ranges between the perfect crystal and the perfect liquid . Associated ...
... crystal- line lamellae in random or as loose loops or regular , tight loops . There is ample evidence that a spectrum of " degrees of order " exists in polymers that ranges between the perfect crystal and the perfect liquid . Associated ...
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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 |