Anticorrosion allyl sulfonate graft chitosan/graphene oxide nanocomposite material

摘要: Chitosan derivatives are easily synthesized since their amine-bound glucosamine molecular units allow for the introduction of reactive chemical groups within polymer chains. These compounds also act as green corrosion inhibitor molecules industrial metals with no adverse impact on environment. In this stduy, we hereby present a synthesis route introducing allyl sulfonate chitosan (CH) chain via its amino by Michael addition reaction. Allyl graft (CH(S)) was reaction involving CH and sulfonate, catalyzed homogeneously acetic acid in alkaline pH using sodium persulfate initiator. CH(S) subsequently grafted onto graphene oxide (GO) nanosheets. The resultant organic/inorganic hybrid (CH(S)–GO) nanocomposite then characterized appropriate techniques utilized an X70 pipeline steel substrate CO2 saturated NaCl electrolyte at 60 °C. grade is extensively used various oilfield applications. This significantly inhibited corrosion, attributed to adsorption formation protective polymeric chitosan-GO films metallic surface. degree inhibition between CH(S)–GO precursor comparatively investigated; superior surface protection revealed only presence nanocomposite. physically adsorbed contributed enhanced hydrophobicity due prevailing low energy GO copolymer analogue must have promoted but ensured more compact coverage surfaces, hence effective inhibitor. Without nanocomposite, anodic significant test media irreversible actions induced chloride dissolution episodes. chitosan/graphene material may future chemistry corrosion-inhibitor additive surface-treatment formulations.