Solid State Behavior of Linear Polyesters and Polyamides |
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Page 13
... melting point of the polymer system steadily drops as the exchange reaction proceeds . ( The melting points of the PET and PEI used are 265 ° C and 130 ° C , respectively ) . The relative catalytic activity of metal compounds ( acetates ...
... melting point of the polymer system steadily drops as the exchange reaction proceeds . ( The melting points of the PET and PEI used are 265 ° C and 130 ° C , respectively ) . The relative catalytic activity of metal compounds ( acetates ...
Page 35
... melting points of PET or nylon 6.6 ) . This conclusion is borne out by the observation that when solid state post - polycondensation takes place at a temperature some 5-15 ° C below the melting point , a well - defined plateau can be ...
... melting points of PET or nylon 6.6 ) . This conclusion is borne out by the observation that when solid state post - polycondensation takes place at a temperature some 5-15 ° C below the melting point , a well - defined plateau can be ...
Page 42
... temperatures well below the melting point , were in the opposite direction to that which could be expected from the data for acetal ring equilibra- tion in a homogeneous melt . This apparent non - equilibrium behavior was rationalized ...
... temperatures well below the melting point , were in the opposite direction to that which could be expected from the data for acetal ring equilibra- tion in a homogeneous melt . This apparent non - equilibrium behavior was rationalized ...
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