Radiothermoluminescence and Transitions in Polymers |
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Page 62
... free enthalpy ) of the sample will exhibit a sharp break at a temperature Tg . The exact position and shape of this ... free volume and a higher free enthalpy than the corresponding equilibrium state 0. By storing the sample at a ...
... free enthalpy ) of the sample will exhibit a sharp break at a temperature Tg . The exact position and shape of this ... free volume and a higher free enthalpy than the corresponding equilibrium state 0. By storing the sample at a ...
Page 156
... free energy of interaction ( AGM ) is negative ; that is , AGm = ( AHm - T △ Sm ) < 0 ( 6.6 ) where AH , and AS , represent the enthalpy and entropy of mixing , respectively . The enthalpy of mixing depends on the strength of unlike 1 ...
... free energy of interaction ( AGM ) is negative ; that is , AGm = ( AHm - T △ Sm ) < 0 ( 6.6 ) where AH , and AS , represent the enthalpy and entropy of mixing , respectively . The enthalpy of mixing depends on the strength of unlike 1 ...
Page 177
... free - energy level of such a heterogeneous system is determined by a balance between the enthalpy and entropy terms consistent with the equilibrium morphology of the system . It is clearly not rigorous to view the block or graft ...
... free - energy level of such a heterogeneous system is determined by a balance between the enthalpy and entropy terms consistent with the equilibrium morphology of the system . It is clearly not rigorous to view the block or graft ...
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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 |