Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 138
... mode process , ii ) the normal modes have a similar temperature dependence ; however , iii ) the normal modes of the 8 - arm star poly- mer are shifted to lower frequencies . Plotting the relaxation times of the normal process vs the ...
... mode process , ii ) the normal modes have a similar temperature dependence ; however , iii ) the normal modes of the 8 - arm star poly- mer are shifted to lower frequencies . Plotting the relaxation times of the normal process vs the ...
Page 156
... mode length of the first three relaxation modes . R denotes the residue scattering and comprises the amplitude of all other modes larger than A ,. Note : A , is actually composed of two processes which are related to t and a weighted ...
... mode length of the first three relaxation modes . R denotes the residue scattering and comprises the amplitude of all other modes larger than A ,. Note : A , is actually composed of two processes which are related to t and a weighted ...
Page 172
... modes ) and effects of chain entanglements . The mean relaxation times of segmental motions in polybutadiene obtained from light scattering and ultrasonic data over nine decades in time conform to a single WLF equation . At temperature ...
... modes ) and effects of chain entanglements . The mean relaxation times of segmental motions in polybutadiene obtained from light scattering and ultrasonic data over nine decades in time conform to a single WLF equation . At temperature ...
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