Polymeric peroxides constitute narrow but important class of peroxy compounds. They can be used as free radical source in many radical processes (i.e. polymerisation, oxidation etc as well as selfcombusting fuels. To this group belong both poly (alkyl peroxides) polyperesters and poly (acyl peroxides). The special kinds of polyperoxides are those having two (or more) peroxy groups of different thermal stability. These peroxides are used as precursors for free radical syntheses of block- and graft- copolymers. Among polyalkyl peroxides vinyl polyperoxides (alternate copolymers of vinyl monomers and oxygen) play a dominant role. However, due to their explosive properties, these peroxides could be hazardous if they form spontaneously. The survey of the preparation methods, and possibility of applications of the above-mentioned polymeric peroxides is presented.
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