Adsorption of alkoxysilanes on aluminum surface from aqueous solutions

Петрунин, М. А.; Максаева, Л. Б.; Yurasova, T. A.; Terekhova, E. V.; Котенев, В. А.; Tsivadze, А. Yu.

doi:10.1134/s2070205113060117

Cited by 11 publications

(15 citation statements)

References 16 publications

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“…It was shown earlier that modification of the sur face of aluminum in an aqueous VS solution resulted in formation on the metal surface of a self organizing organosilicon nanolayer with its thickness determined by the concentration of a modifying solution [7]. Sur face coverage approaches a monolayer at an increase in the concentration of the solution to 1 mM [7].…”

Section: Resultsmentioning

confidence: 94%

“…The support surface was degreased by alcohol, rinsed by water, and dried in air at room temperature. The metal layer thickness was determined by quartz crystal microbalance [14] on a EQCN700 setup (Elchema, United States) by measuring variation of the frequency of a quartz crystal resonator in the course of sputtering and calculating the variation of mass as a result of metal deposition, as well as the value of the true metal surface area by the technique described in [7]. All calculations were carried out tak ing into account the true metal surface area.…”

Section: Methodsmentioning

confidence: 99%

“…They are adsorbed on the sur face of aluminum and form surface self organizing siloxane nanolayers [7]. Herewith, on the one hand, strong and hydrolytically stable Al-O-Si bonds with a hydroxylated metal surface are formed and, on the other hand, variation of the chemical nature of organic radical R allows providing high affinity of the nano layer to a broad spectrum of polymer and paint and lacquer materials [6].…”

Section: Introductionmentioning

confidence: 99%

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The effect of self-organizing vinyl siloxane nanolayers on the corrosion behavior of aluminum in neutral chloride-containing solutions

Петрунин

Максаева

Yurasova

et al. 2014

Prot Met Phys Chem Surf

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The methods of quartz crystal microbalance, atomic force microscopy (AFM), scanning electron microscopy (SEM), Fourier-transform IR spectroscopy, and X ray structural microanalysis were is used to show that adsorption of vinyl silane on an aluminum surface from an aqueous solution results in formation of a uniform, self organizing protective vinyl siloxane nanolayer covalently bound with surface metal groups. Its thickness can be controlled by variation of application conditions. The effect of a vinyl siloxane nanolayer on dissolution of aluminum is studied in chloride containing solutions. It is found that an ordered vinyl siloxane nanolayer with a thickness of up to 5 molecular layers causes efficient inhibition of uniform and local corro sion of aluminum. It is shown that the vinyl siloxane nanolayer is preserved on the surface of aluminum after 10 days of corrosion tests, which indicates its stability at exposure to water and corrosive components.

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Section: Resultsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of self-organizing vinyl siloxane nanolayers on the corrosion behavior of aluminum in neutral chloride-containing solutions

Петрунин

Максаева

Yurasova

et al. 2014

Prot Met Phys Chem Surf

Self Cite

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“…The high efficiency of TAS in the protection of Al and its alloys has been shown in a number of papers [15][16][17][18]. The adsorption of vinyltriethoxysilane (VTES) and aminopropyltriethoxysilane from aqueous solutions on Al surface was studied in [15].…”

Section: Introductionmentioning

confidence: 99%

“…The adsorption of vinyltriethoxysilane (VTES) and aminopropyltriethoxysilane from aqueous solutions on Al surface was studied in [15]. It was shown that these TAS are chemisorbed on the Al surface.…”

Section: Introductionmentioning

confidence: 99%

Protection of aluminium alloys from atmospheric corrosion by thin films of inhibitors

2017

Int. J. Corros. Scale Inhib.

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Some prospects for protection of aluminum alloys by corrosion inhibitors such as carboxylates and trialkoxysilanes are considered. The efficiency of inhibition of anodic dissolution of Al alloys by these compounds in a neutral borate buffer solution containing chlorides (pH 7.4) was investigated. The protective capability of the layers obtained was estimated by an express method (drop test method) and by tests in a heat and moisture cabinet, and in a salt fog cabinet. The efficiency of treatment of Al alloys by aqueous solutions of organic inhibitors was compared with the protective ability of chromate films. It is shown that the passivation of Al alloys by the composition of oleyl sarcosinate with aminoethylaminopropyl-trimethoxysilane at a ratio of 3:1 is an efficient protection method even under salt fog conditions.

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Adsorption of a Carboxylated Silane on Gold: Characterization for Its Rational Use in Hybrid Glass/Gold Substrates

et al. 2016

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Integrated sensing and biosensing microfluidic systems often require sealing between polysiloxane, glass, and gold interfaces, while maintaining functional support on the gold surface within the cell chamber (e.g., biomolecular interaction analysis). A carboxylated trimethoxysilane (TMS-EDTA) coating has been shown to facilitate the bonding of polydimethylsiloxane (PDMS) to gold and glass slides. In this work, the adsorption of TMS-EDTA onto Au is characterized in order to enable its rational use in hybrid glass/gold substrates. Surface plasmon resonance results suggest that carboxylates are available for streptavidin immobilization. Atomic force microscopy studies indicate that a uniform surface coverage with monolayer thickness is formed. Infrared spectroscopy studies confirm that the carboxyl groups are present. Moreover, there is little evidence of siloxane cross-linking. Electrochemical differential capacitance measurements reveal that the potential-dependent free energies of adsorption are ∼−20 to–30 kJ/mol (for potentials between −0.5 and 0.2 V) in the complex electrolyte solution used. Furthermore, at highly negative potentials (∼−1.1 V), TMS-EDTA desorbs from the Au surface. The fundamental knowledge obtained about TMS-EDTA adsorption on Au can be applied to construct robust PDMS-based systems with hybrid glass/gold substrates.

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Adsorption of alkoxysilanes on aluminum surface from aqueous solutions

Cited by 11 publications

References 16 publications

The effect of self-organizing vinyl siloxane nanolayers on the corrosion behavior of aluminum in neutral chloride-containing solutions

The effect of self-organizing vinyl siloxane nanolayers on the corrosion behavior of aluminum in neutral chloride-containing solutions

Protection of aluminium alloys from atmospheric corrosion by thin films of inhibitors

Adsorption of a Carboxylated Silane on Gold: Characterization for Its Rational Use in Hybrid Glass/Gold Substrates

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