Solid State Behavior of Linear Polyesters and Polyamides |
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Page 38
This has already been noted with nylon 6 ( 129 ] . Furthermore , certain inert
additives were used to improve the reaction conditions during solid state post -
polycondensation . These are generally powders or beads of inorganic materials
...
This has already been noted with nylon 6 ( 129 ] . Furthermore , certain inert
additives were used to improve the reaction conditions during solid state post -
polycondensation . These are generally powders or beads of inorganic materials
...
Page 83
The same situation was noted in the crystals of short - chain oligomers ( 27 ] .
Quiescent crystallization from the melt produces spherulitic crystals aggregates .
Keller ( 29 - 30 ) has studied the spherulitic microstructure of PET , as have other
...
The same situation was noted in the crystals of short - chain oligomers ( 27 ] .
Quiescent crystallization from the melt produces spherulitic crystals aggregates .
Keller ( 29 - 30 ) has studied the spherulitic microstructure of PET , as have other
...
Page 114
Reprinted by permission of John A . Wiley & Sons , Inc . In a somewhat parallel
set of studies of oriented PET by other investigators , it has been noted that the
amorphous halo observed in flat - film X - ray patterns appears to be composed of
...
Reprinted by permission of John A . Wiley & Sons , Inc . In a somewhat parallel
set of studies of oriented PET by other investigators , it has been noted that the
amorphous halo observed in flat - film X - ray patterns appears to be composed of
...
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achieved acid additional amorphous annealing Appl applied aspect average behavior block bonding changes Chem chemical composites conclusion constant crack crystallinity crystallization curves decreases deformation density depends determined diameter diffusion direction distribution domains draw ratio drawn effect element energy Equation experiments extrusion factor fatigue fiber Figure fracture fracture toughness function given groups growth healing heat higher important increasing indicated initial length linear load lower material matrix maximum measurements mechanical melt method microfibrils microstructure modulus molded molecular weight molecules nylon nylon 66 observed obtained occurs orientation peak phase Phys polyamides polycondensation polyesters Polymer Sci polymerization properties range reaction regions reported Reprinted from Ref respectively samples SAXS scattering shows solid solid state polycondensation solid-state specimen speed stage strain strength stress structure studied Table temperature tensile units values yield