Solid State Behavior of Linear Polyesters and Polyamides |
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Page 23
... copolymers [ 36 ] . They carried out a solid state reorganization of semicrystalline , random copolyesters , so as to form block copolyesters by ester interchange reactions taking place be- low the melting point of the copolymer's ...
... copolymers [ 36 ] . They carried out a solid state reorganization of semicrystalline , random copolyesters , so as to form block copolyesters by ester interchange reactions taking place be- low the melting point of the copolymer's ...
Page 24
... copolymer composition [ 62 ] ( i.e. , for a random copoly- mer , Q = 1 regardless of the composition ) . For the 78.5 % terephthalate copolymer the net increases in each of these properties over those of the initial copolymer , after 30 ...
... copolymer composition [ 62 ] ( i.e. , for a random copoly- mer , Q = 1 regardless of the composition ) . For the 78.5 % terephthalate copolymer the net increases in each of these properties over those of the initial copolymer , after 30 ...
Page 25
... Copolymer composition , % terephthalate units Reaction condiditions Crystalline properties Sequence distribution ... copolymer of the same ( T ) and ( S ) compositions . d Inherent viscosity of copolymer increased from 0.165 to 0.769 in ...
... Copolymer composition , % terephthalate units Reaction condiditions Crystalline properties Sequence distribution ... copolymer of the same ( T ) and ( S ) compositions . d Inherent viscosity of copolymer increased from 0.165 to 0.769 in ...
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