Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 184
... value of Q , Eq . ( 9 ) predicts that In I ( Q , t ) should be linear in t . Figure 8 confirms this prediction and values of R ( Q ) in Eq . ( 9 ) were extracted from the slopes of these lines . The values of R ( Q ) obtained in 5 4 3 a ...
... value of Q , Eq . ( 9 ) predicts that In I ( Q , t ) should be linear in t . Figure 8 confirms this prediction and values of R ( Q ) in Eq . ( 9 ) were extracted from the slopes of these lines . The values of R ( Q ) obtained in 5 4 3 a ...
Page 193
... value of the relaxed free volume cannot be less than 0.01 . It is impossible to measure lesser values by the existing methods . So , the diffusion mechanism of volume relaxation may only be observed in the case , when DT / l2 > 104 ...
... value of the relaxed free volume cannot be less than 0.01 . It is impossible to measure lesser values by the existing methods . So , the diffusion mechanism of volume relaxation may only be observed in the case , when DT / l2 > 104 ...
Page 225
... values of M2 with temperature , and theoretical values of M2 for cor- responding motions of ethyl groups in ( C2H5 ) , P = O [ 14 ] are shown in Fig . 6. For rigid ethyl groups the magnitude of M2 was calculated to be 29.6 G2 . When the ...
... values of M2 with temperature , and theoretical values of M2 for cor- responding motions of ethyl groups in ( C2H5 ) , P = O [ 14 ] are shown in Fig . 6. For rigid ethyl groups the magnitude of M2 was calculated to be 29.6 G2 . When the ...
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