ArticleRSC advances2025
Sustainable novel chitosan sulfonamides conjugated with a phthalazine derivative for enhanced corrosion inhibition in acidic environments.
Article in RSC advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chitosan, a biopolymer material, has shown great promise as a biodegradable corrosion inhibitor. Herein, this research details the synthesis of new chitosan sulfonamide conjugates by coupling chitosan with 1,4-phthalazinedione sulfonyl chloride (DEPS) at various molar ratios to create enhanced, eco-friendly corrosion inhibitors (CHDEPS1-3). The modifications increased the biopolymer's crystallinity, peaking at 79.80% for CHDEPS3 compared to 64% for native chitosan. The protective performance of the inhibitors on carbon steel in an acidic medium was assessed using electrochemical tests, weight loss measurements, and surface characterization. The findings were highly positive, especially with CHDEPS3 demonstrating a superior inhibition efficiency of 95.38% at a concentration of 400 ppm. Atomic Force Microscopy (AFM) confirmed the formation of a protective adsorbed layer, which reduced the steel's average surface roughness from 852.05 nm to just 36.78 nm. Theoretical analysis, including quantum chemical calculations, molecular dynamics, and Monte Carlo simulations, elucidated the adsorption mechanism. The potentiodynamic polarization data and significantly negative Gibbs free energy values (Δ
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