Effect of poly(methyl methacrylate-co-N-vinyl-2-pyrrolidone) polymer on J55 steel corrosion in 3.5% NaCl solution saturated with CO2

Polymeric corrosion inhibitors for the oil and gas industry: Design principles and mechanism

“…A large R ct value typically corresponds to high corrosion protection efficiency while the C dl decreases with better corrosion inhibition. The electrical double layer composed of the metal substrate and the adsorbed ions is considered as a capacitor whose capacitance values decrease whenever the inhibitors adsorb on the metal surface and displace water molecules [51].…”

“…6, wherein C inh stand for inhibitor concentration, θ is the surface coverage, and K ads is the adsorption equilibrium constant [51]. By plotting the C inh /θ against C inh , K ads can be calculated.…”

“…Negative values correspond to spontaneous adsorption and stable formation of a protective inhibitor layer [53]. ΔG 0 ads values ≤ -20 kJ/mol correspond to physisorption while values ranging ≤ -40 kJ/mol suggest chemisorption [51,54]. Accordingly, ΔH 0 ads and ΔS 0 ads can be calculatedy.…”

“…In a recent investigation, N-vinyl-2-pyrrolidone was copolymerized with methyl methacrylate (MMA) via free radical polymerization resulting to materials with excellent corrosion protection properties for Oil & Gas industries[51]. Poly vinyl pyrrolidone is an environmentally friendly and biocompatible material while the methyl methacrylate units were added for better compability in hydrocarbonbased streams.…”

Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

“…The copolymers represent a specific class of polymers, which also were used for coating modeling at metal-environment interface to obstruct the corrosion [17][18][19][20].…”