Diphenyl-p-phenylene diamine

N,N -Diphenyl-p-phenylene diamine (DPPDA) - Fluka, AG Bych SG... 

N,N, P - phenylcyclohexil - p - phenylene diamine N,N, P - diphenyl - p - phenylene diamine and phenyl - P - naphthylamine conserve strength of PA - fibres by 70-95% at it warming up for 2 hours at 200 ° C (unstabilized fibre - 22%). Despite high inhibitive activity their use is limited, as intermediate products of their transformations dye polymer. 

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... 

The mechanism of Fe "-initiated lipid peroxidation in a liposomal system was studied by Tang et al. (2000). They found that a second addition of ferrous ions within the latent period lengthened the time lag before lipid peroxidation started. The apparent time lag depended on the total dose of Fe "" whenever the second dose of Fe "" was added, which indicated that Fe " has a dual function to initiate lipid peroxidation on one hand and suppress the species responsible for the initiation of the peroxidation on the other. When the pre-existing peroxides (LOOK) were removed by incorporating triphe-nylphosphine into liposomes, Fe "" could no longer initiate lipid peroxidation and the acceleration of the Fe oxidation by the liposomes disappeared. However, when extra LOOH were introduced into Uposomes, both enhancement of the lipid peroxidation and shortening of the latent period were observed. When the scavenger of lipid peroxyl radicals (LOO ), W,hr-diphenyl-p-phenylene-diamine, was incorporated into liposomes, neither initiation of the Upid peroxidation nor acceleration of the Fe " oxidation could be detected. 

The lipid peroxide stimulation mechanism of paraquat acute toxicity has been questioned by Shu et al. (1979), who have shown that it is possible by pre-treatment with N,ivr-diphenyl-p-phenylene-diamine, an antioxidant, to prevent the paraquat stimulation of lipid peroxidation without protecting the animals against its lethal effects. 

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... 

The insulating oligomers were reacted with iodine to create a new, cation-radical salt structure of high conductivity. The crystal structure of the iodine complex of N,N -diphenyl-p-phenylene diamine (PPAa)cI> 2 partially resolved by Huml and... 

Other antioxidant. For example, in the case of PE, 3% by weight of carbon black is more efficient than 2,6-di-fgrt-butyl-4-methylphenol at 140°C [1]. However, the use of carbon blacks is very complicated and care must be taken against their antagonistic effect, which appears when they are combined with other antioxidants such as certain phenols or amines (diphenyl p-phenylene-diamine). 

Draper, H. H, and Scallany, A. S. (1958) Action of NN diphenyl-p-phenylene diamine in tocopherol deficiency diseases, Proc, Soc. Exp, Biol. Med., 99 739. 

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

N,N -diphenyl-p-phenylen- diamine 4-C,H5NH -C,H4NHPh 85.1 355.9 Correlation 2000DEN/DEN... 

DPPD iV iV -Diphenyl-p-phenylene diamine AgeRite DPPD... 

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