Solid State Behavior of Linear Polyesters and Polyamides |
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Page 91
... noncrystalline state . Rosenke and Zachmann [ 60 ] , have , in fact , computed the breadth of the NMR signal as a function of the relative extension of a chain molecule and show that such molecules must contribute to the broad line . We ...
... noncrystalline state . Rosenke and Zachmann [ 60 ] , have , in fact , computed the breadth of the NMR signal as a function of the relative extension of a chain molecule and show that such molecules must contribute to the broad line . We ...
Page 113
... noncrystalline regions straighten and are incorporated into the crystal fibril . Thus in the crystallization event " wrongly directed " segments are redirected as " good " segments , causing an overall elongation of the system . Figure ...
... noncrystalline regions straighten and are incorporated into the crystal fibril . Thus in the crystallization event " wrongly directed " segments are redirected as " good " segments , causing an overall elongation of the system . Figure ...
Page 114
... noncrystalline material must be very dense , compared with a relaxed amorphous phase and must have a very high orientation . 50- 1 - a - y [ % ] Ano = 180 10-3 40- 30- 20- Ano = 30-10-3 Ano = 2.5 · 103 10- 180 200 220 240 Tc [ ° C ] ...
... noncrystalline material must be very dense , compared with a relaxed amorphous phase and must have a very high orientation . 50- 1 - a - y [ % ] Ano = 180 10-3 40- 30- 20- Ano = 30-10-3 Ano = 2.5 · 103 10- 180 200 220 240 Tc [ ° C ] ...
Contents
SOLID STATE REACTIONS IN LINEAR | 1 |
CHEMICAL HEALING | 43 |
PRACTICAL ASPECTS OF ADDITIONAL SOLID STATE | 59 |
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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