customized packing kampala chemical industry antioxidant tmq
customized packing kampala chemical industry antioxidant tmq
customized packing kampala chemical industry antioxidant tmq
customized packing kampala chemical industry antioxidant tmq
customized packing kampala chemical industry antioxidant tmq
  • Is polymerized TMQ an antioxidant?
  • One of the mostly used antioxidants is polymerized TMQ. It is a secondary amine and can strongly inhibit the oxidation reactions of rubber [16, 17, 18]. Zidan et al. prepared galloyl hydrazide and used it as antioxidant for natural rubber (NR).
  • Does TMQ protect against oxidative aging?
  • A radical scavenger in a wide range of elastomers to protect against oxidative aging. TMQ provides oxidation protection to nearly all elastomer types in a variety of applications, having a wide range of temperatures exposure. The long persistence in rubber allows it to provide long term heat aging resistance to rubber compounds.
  • What is TMQ polymerization reaction?
  • First, the condensation reaction (R1) is carried out under acid conditions, which converts aniline (A) and acetone (B) to the TMQ monomer (C) and water (D). Then polymerization reactions (R2 − R4) are conducted, in which the monomers (C) are polymerizes to TMQ oligomers including dimers (E), trimers (F) and tetramers (G). (R1)(R2)(R3)(R4)
  • How are TMQ synthesis reactions carried out?
  • The synthesis reactions of TMQ are carried out in both two phases. All compounds including the reactants, products and the solvent are transferred between extraction and raffinate phase driven by the difference of chemical potential. Fig. 8.