Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 102
... motion of short chains . E λι ( τ ) Å , ( t ) = // Å , ( t ) á ( t ) a = lä E m Xi ( T ) ( 3 c ) ( 3d ) ( 3 e ) E is the ( conserved ) kinetic energy of the system . For simplicity , equal masses for all points are assumed . In terms ...
... motion of short chains . E λι ( τ ) Å , ( t ) = // Å , ( t ) á ( t ) a = lä E m Xi ( T ) ( 3 c ) ( 3d ) ( 3 e ) E is the ( conserved ) kinetic energy of the system . For simplicity , equal masses for all points are assumed . In terms ...
Page 103
... motion . With this property the averaged force of Eq . ( 7 ) is proportional to the temperature ( FN + 1 ) ~ T ) , a relation which is well known in polymer physics [ 4 ] . In the following section we consider the two - dimensional motion ...
... motion . With this property the averaged force of Eq . ( 7 ) is proportional to the temperature ( FN + 1 ) ~ T ) , a relation which is well known in polymer physics [ 4 ] . In the following section we consider the two - dimensional motion ...
Page 155
... motion from those relative to the center of mass . The center of mass motion follows the same diffusion equation as that for hard spheres . For the internal motions with respect to the center of mass a normal mode analysis has to be ...
... motion from those relative to the center of mass . The center of mass motion follows the same diffusion equation as that for hard spheres . For the internal motions with respect to the center of mass a normal mode analysis has to be ...
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