Relaxation in PolymersM. Pietralla, W. Pechhold |
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Results 1-3 of 40
Page 54
... polarization in the z - direction and then at the supermirror analyser the total polarization is recovered . The experimental set up is spin focussing : similar to NMR spin echo methods in front of the sec- ond л / 2 coil for each spin ...
... polarization in the z - direction and then at the supermirror analyser the total polarization is recovered . The experimental set up is spin focussing : similar to NMR spin echo methods in front of the sec- ond л / 2 coil for each spin ...
Page 237
... polarization if the step goes from E = 0 to Ep0 , or isothermal depolarization if it goes from Ep 0 to E = 0. With that assumption the Debye - relaxation yields for the isothermal polarization and depolarization current density h 103 j ...
... polarization if the step goes from E = 0 to Ep0 , or isothermal depolarization if it goes from Ep 0 to E = 0. With that assumption the Debye - relaxation yields for the isothermal polarization and depolarization current density h 103 j ...
Page 238
... polarization is studied . The sam- ple is polarized by an applied polarization field Ep at the temperature Tp ( Fig . 4a ) . This polarization is subsequently frozen in by cooling the sample down to a temperature To sufficiently low to ...
... polarization is studied . The sam- ple is polarized by an applied polarization field Ep at the temperature Tp ( Fig . 4a ) . This polarization is subsequently frozen in by cooling the sample down to a temperature To sufficiently low to ...
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