Solid State Behavior of Linear Polyesters and Polyamides |
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Page 13
... transesterification process between PET and PEI was car- ried out at 265 ° C in a sealed glass ampule with and without catalyst . The melting point of the polymer system steadily drops as the exchange reaction proceeds . ( The melting ...
... transesterification process between PET and PEI was car- ried out at 265 ° C in a sealed glass ampule with and without catalyst . The melting point of the polymer system steadily drops as the exchange reaction proceeds . ( The melting ...
Page 18
... transesterification . Since PBT alcohol- ysis by a phenol failed to take place , the authors concluded that acidolysis cannot be the main mechanism for the PBT - PC reaction ; hence it must be direct transesterification [ 42 ] . This ...
... transesterification . Since PBT alcohol- ysis by a phenol failed to take place , the authors concluded that acidolysis cannot be the main mechanism for the PBT - PC reaction ; hence it must be direct transesterification [ 42 ] . This ...
Page 19
... transesterification might also proceed via successive alcoholysis stages , as postulated by Murano and Yamadera [ 46 ] for PET - PES transesterification . It is well known that alcoholysis of polyesters is enhanced by Ti derivatives ...
... transesterification might also proceed via successive alcoholysis stages , as postulated by Murano and Yamadera [ 46 ] for PET - PES transesterification . It is well known that alcoholysis of polyesters is enhanced by Ti derivatives ...
Contents
SOLID STATE REACTIONS IN LINEAR | 1 |
TRANSREACTIONS AND POSTADDITIONAL | 19 |
CHEMICAL HEALING | 43 |
Copyright | |
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Common terms and phrases
acid additional solid amorphous annealing Appl aspect ratio behavior birefringence block temperature chain Chem chemical healing composites copolyester copolymer courtesy crystallinity crystallization curves decreases deformation degree of crystallinity density diameter diffusion domains 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 macromolecules Makromol material matrix maximum measurements mechanical melting point microfibrils microstructure mm/min modulus molding 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