Formation of a microheterogeneous polymer-polymer system during graft polymerization of acrylic acid on polyethylene and fluoroplast matrix

Using the concept of micro- and macrokinetic heterogeneity, graft polymerization of acrylic acid on matrices in the form of polyethylene or fluoroplast films was investigated. It was found that the kinetic inhomogeneity of a polymerized system is determined not only by the nature of the process proceeding in water solution but also by the microheterogeneity of the polymeric matrix, namely, by the presence of amorphous and crystalline domains. This predetermines the nature and local concentrations of active grafting centers, character of the diffusion processes and, hence, the molecular mass and spatial distribution of grafted chains and the structure and properties of microheterogeneous system obtained. It is shown that active centers of the crystalline phase can be involved in the polymerization process