Polyolefin surface activation by grafting of functional polyperoxide

It is concluded that the grafted fractal (grafted “island”) consists of about 500-1000 cross-linked FPP macromolecules. The latter finding was described by mathematical model characterizing polyperoxide grafting to the polyolefin surface. It was found that thickness of grafted film (20-50 nm) depends on polyperoxide composition and molecular weight. As a result of peroxidation, 0.01-0.03 mmol/m2 peroxide groups can be covalently attached to the polyolefin surface. These groups are further able to initiate radical polymerization on the polyolefin surface.