Utilization of New Anionic Polymeric Surfactants for Corrosion Inhibition Enhancement in Petroleum Industries

摘要

In this work, 2-acrylamido-2-methylpropane sulfonic acid-CO-lauryl acrylate copolymer is used in thesynthesis of three new anionic polymeric surfactants for use in corrosion protection of petroleumpipelines composed of carbon steel alloy. The corrosion inhibition performance of the preparedinhibitors was measured using weight loss and electrochemical methods in 1M HCL. The morphologyof untreated and treated carbon steel surfaces was studied by scanning electron microscopy (SEM).Also, the thermodynamic properties as well as surface tension were investigated for the preparedinhibitors. Adsorption phenomena for the prepared surfactants on the carbon steel alloy were found toobey Langmuir's law. The quantum chemical parameters as highest occupied molecular orbital(EHOMO), lowest unoccupied molecular orbital (ELUMO) and energy gap () were computed for theprepared inhibitors and it was found that LP3 had higher efficiency than others.