Abstract
IR spectroscopy showed that dipole-dipole interactions of the hydrogen bond type with formation of stereocomplexes take place between macromolecules of the copolymer of ethylene with vinyl acetate (CEVA) and copolyamide (CPA) during fabrication of blends. CEVA affects the network of intermolecular hydrogen bonds in CPA like a polar solvent: due to the reaction of the carbonyl (C=O) group in CEVA with the amide groups in CPA, rearrangement of the network of hydrogen bonds in the polyamide and formation of a new stereocomplex take place.
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