SOME INVESTIGATIONS ON RADIATION-GRAFTING OF ACRYLIC-ACID ONTO POLY(TETRAFLUOROETHYLENE-ETHYLENE) COPOLYMER FILMS AND ITS COMPLEX WITH COPPER SALT SOLUTION

A study was made of the graft copolymers obtained by radiation-induced grafting of acrylic acid onto poly(tetrafluoroethylene-ethylene) (ET) films. The conversion of the graft copolymers (60 wt%) into metal acr ylate copolymer complexes was carried out by treatment with various co ncentrations of aqueous CuCl2. These graft copolymer-metal complexes w ere studied by TR, UV spectrometry, X-ray diffraction (XDR), and elect ron spin resonance (ESR). The effect of temperature on the trunk, untr eated grafted and treated grafted copolymer films was investigated by IR and thermogravimetric (TG) analysis. The influence of metal complex es of Cu2+ ions on the thermal properties and electrical conductivity was determined. It is assumed that such materials may be of great inte rest in the held of semiconducting materials, in addition to their res istance to degradation under high temperature, up to 300 degrees C. (C ) 1998 Society of Chemical Industry