Solid State Behavior of Linear Polyesters and Polyamides |
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Page 29
... diffusion control . It seems more likely that reaction kinetics and by - product diffusion both contribute to the overall rate ; in other words , the data fit into the transition region between kinetic and diffusion control ...
... diffusion control . It seems more likely that reaction kinetics and by - product diffusion both contribute to the overall rate ; in other words , the data fit into the transition region between kinetic and diffusion control ...
Page 30
... diffusion model and that no correlation be- tween diffusivity and temperature could be obtained . So Chang concluded that for the temperature range and particle size in the study [ 101 ] , the rate of PET solid state polycondensation is ...
... diffusion model and that no correlation be- tween diffusivity and temperature could be obtained . So Chang concluded that for the temperature range and particle size in the study [ 101 ] , the rate of PET solid state polycondensation is ...
Page 58
... diffusion mechanism of macrochains in linear polycondensates at el- evated temperatures . It seems very likely that segment transfer through the bulk is not only due to physical diffusion processes but to chemical ones as well . As long ...
... diffusion mechanism of macrochains in linear polycondensates at el- evated temperatures . It seems very likely that segment transfer through the bulk is not only due to physical diffusion processes but to chemical ones as well . As long ...
Contents
SOLID STATE REACTIONS IN LINEAR | 1 |
CHEMICAL HEALING | 43 |
PRACTICAL ASPECTS OF ADDITIONAL SOLID STATE | 59 |
Copyright | |
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Common terms and phrases
acid additional solid amorphous annealing Appl aspect ratio behavior birefringence block temperature chain Chem composites copolyester copolymer courtesy crystallinity crystallization curves decreases deformation degree of crystallinity density diameter diffusion domains Dröscher effect Equation exchange reactions extrusion temperature Fakirov fiber axis fibers drawn filament fracture mechanics fracture toughness function heat of fusion heated element higher increasing initial kg/cm² kinetics linear polycondensates load macromolecules Makromol material matrix maximum measurements mechanical melting point microfibrils microstructure mm/min modulus molded molecules morphology nominal draw ratio noncrystalline nylon 6 fibers nylon 66 orientation parameters peak PET fibers phase Phys polyamides polyesters Polymer Sci polymerization properties Reprinted from Ref samples SAXS Schultz semicrystalline shown in Figure solid state polycondensation solid state post-polycondensation solid state reactions Solid-state extrusion specimen spherulite strength stress structure Table tensile terephthalate thermoplastics toughened transesterification transreactions values x-ray yield Zachmann