Synthesis and Anti-Oxidative Properties of Poly(diphenylamine) Derivative as Lubricant Antioxidant
Abstract: The poly(diphenylamine) derivative (PDPA) as amine antioxidant was synthesized via diphenylamine, styrene, and formaldehyde. The steps of the synthesis were discussed in detail, and the structure of PDPA was fully characterized with multiple ana
The invention relates to a composition comprising a mixture of alkylated N-α-naphthyl-N-phenylamine (PANA) and alkylated diphenylamine (DPA), the product obtainable by alkylat-ing PANA or a mixture of PANA and DPA with alkenes and the process for alkylating PANA or a mixture of PANA and DPA with alkenes. The compositions according to the present in-vention have an outstanding anti-oxidative action, which can be demonstrated by established test methods.
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(2010/02/14)
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