نوع مقاله : مقاله پژوهشی کامل
نویسندگان
1 گروه شیمی، دانشگاه پیام نور، تهران، ایران
2 دانشگاه آزاد اسلامی واحد لامرد، لامرد، ایران
3 دانشکده مهندسی، دانشگاه تهران، تهران ، ایران
چکیده
یک ترکیب آلی جدید از خانواده بی پیریدین ها با استخلاف آمینو اسید ( گروه عاملی سیستئین) سنتز شد و ویژگی آن با طیف های ان ام آر و آی آر تایید شد .این لیگاند سنتزی برای اولین بار به عنوان یک بازدارنده خوردگی لوله های استیل در محیط های اسیدی ( اسید سولفوریک و کلریدریک) استفاده شد. روش مورد استفاده روش پلاریزاسیون پتانسیومتری می باشد. نتایج به دست آمده نشان داد که راندمان بازدارندگی با افزایش غلظت بازدارنده افزایش می یابد.منحنی های پلاریزاسیون نشان داد که این نوع بازدارنده از نوع مختلط می باشد. جذب سطحی مولکول های بازدارنده بر روی سطح استیل از ایزوترم لانگمویر تبعیت می کند. علاوه بر روش های الکتروشیمی،از روش آماری ارزیابی داده ها (مدل روش ماشین برداری حمایت کننده)برای اثبات اثر بازدارندگی و ساختار مولکولی بازدارنده استفاده شد.
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