Solid State Behavior of Linear Polyesters and Polyamides |
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Page 24
... increase in crystallinity , most of which is observed within the initial 10 h , although the number - average sequence length of terephthalate blocks increased by only a few per cent ; ( 2 ) a 28 % increase in LT ; and ( 3 ) 19 and 66 % ...
... increase in crystallinity , most of which is observed within the initial 10 h , although the number - average sequence length of terephthalate blocks increased by only a few per cent ; ( 2 ) a 28 % increase in LT ; and ( 3 ) 19 and 66 % ...
Page 60
... increase with molecular weight [ 186-189 ] . Stability to impact and stress cracks is considerably improved when the molecular weight is increased [ 189 ] . A particularly marked increase in the elongation at break , 7 , with increasing ...
... increase with molecular weight [ 186-189 ] . Stability to impact and stress cracks is considerably improved when the molecular weight is increased [ 189 ] . A particularly marked increase in the elongation at break , 7 , with increasing ...
Page 62
... increase . As a first sequence , such a treatment increases the melt viscosity and thus improves the processing ... increase from 19,000 to 30,000 leads to a 55 % increase in the stress at break . A further molecular weight increase to ...
... increase . As a first sequence , such a treatment increases the melt viscosity and thus improves the processing ... increase from 19,000 to 30,000 leads to a 55 % increase in the stress at break . A further molecular weight increase to ...
Contents
SOLID STATE REACTIONS IN LINEAR | 1 |
CHEMICAL HEALING | 43 |
PRACTICAL ASPECTS OF ADDITIONAL SOLID STATE | 59 |
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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