Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 165
... factor ( DWF ) : I ~ I exp [ -Q2r > ] ; ii ) the in- elastic phonon scattering intensity increases linearly with Q2 and is dependent on temperature according to both Bose factors and DWF - factor ; iii ) the mean squared displacement ...
... factor ( DWF ) : I ~ I exp [ -Q2r > ] ; ii ) the in- elastic phonon scattering intensity increases linearly with Q2 and is dependent on temperature according to both Bose factors and DWF - factor ; iii ) the mean squared displacement ...
Page 170
... factor ( S ( Q , w ) dw ) and the " strictly " elastic structure factor ( S ( Q , @ < 8 μeV ) at T = 2 K. The temperature dependence of the " strictly " elastic structure factor shows the disap- pearance of the correlation peaks at ...
... factor ( S ( Q , w ) dw ) and the " strictly " elastic structure factor ( S ( Q , @ < 8 μeV ) at T = 2 K. The temperature dependence of the " strictly " elastic structure factor shows the disap- pearance of the correlation peaks at ...
Page 194
... factor is typical of many polymers [ 10 , 24 ] . -20 -10 8.102 +0.5 -Q5 Fig . 11. Dependence of the phase difference ... factor related both to op- tical properties of macromolecules and to their orien- tation degree of order . Factor B ...
... factor is typical of many polymers [ 10 , 24 ] . -20 -10 8.102 +0.5 -Q5 Fig . 11. Dependence of the phase difference ... factor related both to op- tical properties of macromolecules and to their orien- tation degree of order . Factor B ...
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