THE FORMATION OF HIGHLY DISPERSE NICKEL P ARTICLES IN POROUS POLYMER MATRICES

A kinetic analysis of the reduction of metal salts by sodium borohydri de in the bulk of porous polymer matrices was carried out. Parameters of the as-formed metal layer were shown to be controlled by interplay between the rate of the diffusion flux of reagents into the polymer ma trix and the rate of the reduction reaction. The validity of the concl usions is demonstrated for the nickel-containing composites based on a porous polypropylene matrix, which were prepared at different tempera tures. The model schemes of composites that can be obtained using this method are presented.