Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 5
... ture history . The case of isothermal flow at constant shear rate and at a certain level of supercooling is worked out in more detail . The obtained result favorably compares with experiments by Lagasse and Maxwell . Implications for ...
... ture history . The case of isothermal flow at constant shear rate and at a certain level of supercooling is worked out in more detail . The obtained result favorably compares with experiments by Lagasse and Maxwell . Implications for ...
Page 50
... ture T for propagation along x2 , using the 90 R - scattering geometry . The electric field vectors are chosen to be E , || E , || x , and || x3 , respectively Equation ( 8 ) has been used 90 R Di 90 to determine 90 ( i = 1,3 ) . Figure ...
... ture T for propagation along x2 , using the 90 R - scattering geometry . The electric field vectors are chosen to be E , || E , || x , and || x3 , respectively Equation ( 8 ) has been used 90 R Di 90 to determine 90 ( i = 1,3 ) . Figure ...
Page 96
... ture - shift principle [ cf. Eq . ( 5 ) ] and so the small varia- tions in shape and intensity of eq ( t ) with tempera- ture are neglected . After solving Eq . ( 3 ) numerically by means of an iteration procedure J ( T ) is calculated ...
... ture - shift principle [ cf. Eq . ( 5 ) ] and so the small varia- tions in shape and intensity of eq ( t ) with tempera- ture are neglected . After solving Eq . ( 3 ) numerically by means of an iteration procedure J ( T ) is calculated ...
Contents
Preface | 13 |
Dispersive and nondispersive transport processes in polymers | 45 |
Neutron spinecho investigations on the dynamics of polymer systems | 63 |
Copyright | |
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amorphous annealing behavior calculated changes charge carrier Chem Phys coefficient component concentration copolymer correlation function crosslinked crystalline crystallization curves dangling chains defects deformation density diacetylene dielectric dielectric relaxation diffusion dipole distribution dynamic elastic energy equation equilibrium experimental experiments factor film fluctuations free volume frequency glass transition glass transition temperature glassy polymers heating increase intensity interaction layer length linear Macromolecules measured mechanism melt mesomorphic mesophase mobility modes modulus molecular mass molecular weight molecules monomer motion neutron observed obtained orientation parameter PDES peak perature phase phonon Phys Rev plastic polarization polybutadiene Polym Sci polymer polymer chains polymeric properties PTTF PVDF radicals range region relaxation processes Rouse sample scale scattering segment shear shown in Fig spatial light modulator spectra spectrum spherulite structure T₁ temperature dependence theory thermal thermodynamic tion tube ture values viscoelastic viscosity