Hamulic, Damir published the artcileThe influence of length of alkyl chain on the chemical structure and corrosion resistance of silica-polyacrylic hybrid coatings on structural steel, Product Details of C16H30O2, the main research area is methacrylic polysiloxane anticorrosive coating transparency morphol wettability impedance.
Hybrid coatings were prepared, via a sol-gel route from 3-(trimethoxysilyl)propyl methacrylate (MAPTMS), tetra-Et orthosilicate (TEOS), and derivatives of methacrylate (methyl-, ethyl-, butyl-, hexyl-, octyl- and dodecyl methacrylate). The main goal of this study was to evaluate how the length of the alkyl chain of the ester part of a methacrylate influences the anti-corrosion property of the coatings. Fourier transform IR spectroscopy, NMR spectroscopy, contact angle measurements, and SEM with chem. anal. were used to determine the chem. composition, structure, wettability and morphol. of the coatings. The contact angle of the coatings increased from methyl- to butyl-containing coating (from 60° up to 80°); at the same time the surface free energy decreased. For longer chains, a plateau was reached (≈75°), which was in contrast to the prediction that a longer chain would result in reduced wettability due to its nonpolar alkyl part. The anti-corrosion behavior in 3.5 weight % NaCl of the coatings deposited on structural steel was studied by electrochem. impedance spectroscopy. The coatings with Et and Bu groups exhibited the best anti-corrosion performance and remained intact over six months of immersion. The related values of impedance magnitude at low frequency was 1010 Ω cm2 after six months. This high corrosion resistance was due to the appropriate combination of condensation degree and wettability. Coatings with longer alkyl chains (hexyl, octyl, and dodecyl) showed poor corrosion resistance due to lower heterocondensation and a larger nonpolar effect that resulted in non-homogenous mixing, which could not produce dense and protective coatings.
Progress in Organic Coatings published new progress about Anticorrosive coating materials. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Product Details of C16H30O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics