Relaxation in PolymersM. Pietralla, W. Pechhold |
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Page 6
... shear induced crystallization is , irrespective of the ap- plied rate of shear , the consequence of the total shear accumulated . This critical shear is a function of the degree of supercooling , the type of polymer and its molar mass ...
... shear induced crystallization is , irrespective of the ap- plied rate of shear , the consequence of the total shear accumulated . This critical shear is a function of the degree of supercooling , the type of polymer and its molar mass ...
Page 9
... shear up to the very moment t ; where crystallization occurs : One should still obtain shear- induced crystallization when flow flow is stopped somewhat earlier ( at ts ) . This can be put into the following equation : } $ ( 1 ) αr ' + ...
... shear up to the very moment t ; where crystallization occurs : One should still obtain shear- induced crystallization when flow flow is stopped somewhat earlier ( at ts ) . This can be put into the following equation : } $ ( 1 ) αr ' + ...
Page 267
... shear direction ) one may use the following data 42 = ( 83 + 82 ) ≈ 4.73 Å2 from ideal lateral kink ༤ T≈ 320 K , A = 2.24.5 Å2 L ≈ 43 Å , displacements 8y , dz [ 8 ] ( two pairs of molecules / unit cell ) , and gets 4J1 = 24S1313 ...
... shear direction ) one may use the following data 42 = ( 83 + 82 ) ≈ 4.73 Å2 from ideal lateral kink ༤ T≈ 320 K , A = 2.24.5 Å2 L ≈ 43 Å , displacements 8y , dz [ 8 ] ( two pairs of molecules / unit cell ) , and gets 4J1 = 24S1313 ...
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