N-Diphenyl-p-phenylene Diamine DPPD

DPPD is a very commonly used antioxidant of the diarylphenylene diamine class. DPPD is relatively less expensive than PPDs of the alkyl-aryl or alkyl-alkyl class. On the other hand, DPPD is also not as reactive with ozone and possesses lower solubility in rubber, which causes it to form an undesirable bloom more readily than the other antiozonants. DPPD is a widely used antioxidant however, its use as an antiozonant is much smaller. 

N -Diphenyl-jO-phenylene diamine DPPD (official ASTM abbreviation) 

ASTM D4676 classifies DPPD in relation to other antidegradants. 

DPPD is relatively inexpensive compared to other PPD antidegradants. 

DPPD is also used as an intermediate for drugs, dyes, detergents, and plastics. Substitutability and Technical Alternatives 

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Welsh SO (1979) The protective effect of vitamin E and N,N -diphenyl-p-phenylene-diamine (DPPD) against methyl mercury toxicity in the rat. J Nutr 109 1673-1681... 

Figure 11.28 The synthesis of N,N -diphenyl p-phenylene diamine (DPPD)...

Synonyms Agerite DPPD N,N -diphenyl-p-phenylenediamine 1,4-dianilinobenzene diphenyl PPD DPPD N,N -diphenyl-i,4-benzenediamine i,4-bis(phenylamino) benzene N,N -diphenyl-i,4-diaminobenzene 4,4 -diphenyl-p-phenylenediamine diphenyl-p-phenylenediamine Flexamine G JZF Nonox DPPD p-phenylaminodiphenylamine p-phenylenediphenyldiamine Diafen Diafen FF N,N -diphenyl-i,4-phenylenediamine Altofane dip Nonflex H Permanax 18 Stabilizer DPPD p-bis(phenylamino)benzene Nocrac DP Permanax DPPD DFFD Antage DP Ekaland DPPD Naugard J N,N -diphenyl-p-phenylene diamine... 

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