POLYMERIC PEROXYACIDS

Benzeneperoxyseleninic acid, 2337 Benzeneperoxy sulfonic acid, 2341 3-Chloroperoxybenzoic acid, 2676 Diperoxyazelaic acid, 3189 Diperoxyterephthalic acid, 2925 Monoperoxysuccinic acid, 1542 Peroxyacetic acid, 0837 Peroxybenzoic acid, 2733 3-Peroxycamphoric acid, 3348 Peroxycrotonic acid, 1535 Peroxyformic acid, 0420 Peroxyfuroic acid, 1837 Peroxyhexanoic acid, 2514 Peroxy propionic acid, 1236 Peroxytrifluoroacetic acid, 0666 Trichloroperoxyacetic acid, 0659 See 1 /-DI(BENZOYLPEROX Y)ARYLIODINES POLYMERIC PEROXYACIDS ORGANIC PEROXIDES... 

Benzeneperoxyseleninic acid, 2330 Benzeneperoxysulfonic acid, 2334 3-Chloroperoxybenzoic acid, 2672 Diperoxyazelaic acid, 3183 Diperoxyterephthalic acid, 2920 Monoperoxysuccinic acid, 1537 Peroxyacetic acid, 0833 Peroxybenzoic acid, 2729 3-Peroxycamphoric acid, 3342 Peroxycrotonic acid, 1530 Peroxyformic acid, 0419 Peroxyfuroic acid, 1831 Peroxyhexanoic acid, 2508 Peroxypropionic acid, 1232 Peroxytrifluoroacetic acid, 0662 Trichloroperoxyacetic acid, 0655 POLYMERIC PEROXYACIDS See I,I-DI(BENZOYLPEROXY)ARYLIODINES See also ORGANIC PEROXIDES... 

Plant cleaning incidents, 330 Platinum compounds, 330 Platinum group metals, 331 Poly(aminium) perchlorates, 331 Polyazacaged metal perchlorates, 332 Polycondensation reaction incidents, 332 Poly(dimercuryimmonium) compounds, 332 Poly(dimethylsilyl)chromate, 333 Polymeric peroxyacids, 333 Polymerisation incidents, 333 Polynitroalkyl compounds, 336 Polynitroaryl compounds, 337 Polynitroazopyridines, 340 Polyperoxides, 341 Polypropylene powder, 342 Precious metal derivatives, 342 Preparative hazards, 342... 

Undissociated hydrogen peroxide behaves, to some extent, as a nucleophile, being about 104 times more nucleophilic than water. For example, hydrogen peroxide readily adds to carbonyl bonds giving rise to hydroxyhydroperoxides (peracetals and perketals). Such compounds are often used as polymerization initiators on account of their radical decomposition at moderate temperatures (0-0 bond homolysis). Neutral hydrogen peroxide can also react with activated acyl compounds such as anhydrides to give peroxyacids. 

All organic peroxides, with the possible exception of the peroxyacids, appear to undergo O—O homolysis at temperatures below about 150° and should therefore be capable of initiating the polymerization of vinylic monomers. In practice, however, only a very few peroxides are regularly used as catalysts. This paper describes the results of an investigation of the mechanism of the preparation of organic peroxides and the extension of the reactions to the preparation of new types of peroxides which may have novel properties as polymerization catalysts. 

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