pentamethyl diethylenetriamine (pc-5) in sustainable corrosion-resistant coatings introduction corrosion remains a significant global challenge, impacting infrastructure, transportation, and various industrial sectors. the economic and environmental costs associated with corrosion are substantial, driving the need for innovative and sustainable corrosion-resistant coatings. pentamethyl diethylenetriamine (pc-5), a tertiary amine, has emerged as a promising candidate in the development...