Synthesis and characteristics of metal-polymer complexes of p-EGM/AA-Ni0-Co0 and p-PGM/AA-Ni0-Co0

Abstract

Possibility of using the copolymers of poly-(ethylene)-propylene glycol maleate (p-EGM, p-PGM) with acrylic acid (АA) as a matrix for obtaining effective metal-polymer complexes of different application was shown. The compositions, structures and dimensions of particles of nickel and cobalt stabilized in polymeric matrix were determined using the methods of transmission electron microscopy and scanning microscopy, infrared spectroscopy, laser-emission spectroscopy, dispersive microscopy and thermogravimetric analysis. The average size of nanoparticles, which have spherical shape and equal distribution along cross-section of polymer, was 100–170 nm. Percentage content of nickel and cobalt in the complex was equal to 0.52 and 0.48, respectively, in the p-EGM/AA copolymer, 0.49 and 0.51 in the p-PGM/AA copolymer. The analysis of electromagnetic force-pictures of p-EGM/AA (14.8:85.2 mass.%) and p-PGM/AA (15.1:84.9 mass.%) copolymers’ films showed a relatively equal distribution of the filler (Ni0, Co0) along the cross-section of polymer. The average number of metal particles on 10 microns was 600–700 units for particles of Ni and 550–650 units for particles of Co. Thermal decomposition of metal-polymer complexes occurred in the temperature range of 200–500 ºС. The average weight loss on TG — curves was 80 %. Therefore, p-EGM/AANi0- Co0 and p-PGM/AA-Ni0-Co0 metal-polymeric complexes obtained can be used as a template for the creation of catalytically effective composite materials.