Radiothermoluminescence and Transitions in Polymers |
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Page 33
... increase in the contribution of fluorescence in the spectra of some polymers ( polyeth- ylene , polyethylene terephthalate ) on heating is most probably due to temperature quenching , which ( as was shown in [ 30 ] ) very markedly ...
... increase in the contribution of fluorescence in the spectra of some polymers ( polyeth- ylene , polyethylene terephthalate ) on heating is most probably due to temperature quenching , which ( as was shown in [ 30 ] ) very markedly ...
Page 129
... increase in intensity of the radiothermoluminescence maximum around 230 K also correlates with the increase in mass fraction of the interzonal component . Along with these similarities , there is one basic dissimilarity in the results ...
... increase in intensity of the radiothermoluminescence maximum around 230 K also correlates with the increase in mass fraction of the interzonal component . Along with these similarities , there is one basic dissimilarity in the results ...
Page 134
... increased value for the measured melting point can be attributed to several factors . They are either an increase in crystalline thickness , a decrease in the concentration of defects within the interior of the crystallites , or the ...
... increased value for the measured melting point can be attributed to several factors . They are either an increase in crystalline thickness , a decrease in the concentration of defects within the interior of the crystallites , or the ...
Contents
Preface | 5 |
Application of Radiothermoluminescence to the Study | 6 |
1 | 11 |
Copyright | |
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Common terms and phrases
absorption activation energy amorphous annealing atactic atoms bleaching blend changes charge Charlesby Chem chemical chemically trapped components concentration constant copolymer cross-linking crystal crystalline decay decrease depends dielectric dipoles distribution dose effect electron affinity electron traps electron-spin resonance emission entropy equilibrium excited molecules excited singlet first-order fluorescence free radicals free volume frequency factor glass glass-transition temperature glow curve glow peak increase INTENSITY relative units interaction interfacial intersystem crossing interzonal ionization irradiation isothermal kinetic light linear low temperatures luminescence luminescence centers LUMINESCENCE INTENSITY relative Macromolecules material maxima maximum mechanical method molecular motion molecules Nikolskii nuclear magnetic resonance observed occur oxygen phase phosphorescence Phys polar polybutadiene polyethylene samples polymer polypropylene quenching radiation radiothermoluminescence reactions recombination region relaxation transitions secondary relaxation semicrystalline Solprene spectra spectroscopy spectrum structure thermal thermodynamic thermoluminescence thermoluminescence intensity thermoluminescence peaks tion transition temperature trapped electrons triplet untrapping vibrational vulcanization whereas
References to this book
Polymer Surfaces and Interfaces II, Volume 2 W. J. Feast,H. S. Munro,R. W. Richards Snippet view - 1993 |