Optimization of the vegetable oil composition in alkyd resins: A kinetic approach based on FAMEs autoxidation

Dubrulle, Laurent; Lebeuf, Raphaël; Fressancourt-Collinet, M.; Nardello‐Rataj, Véronique

doi:10.1016/j.porgcoat.2017.06.021

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…Various experimental methods, including liquid chromatography [24], mass spectrometry [25], measurements of oxygen uptake [26], measurements of viscoelastic properties on quartz crystal microbalance [27] and vibration spectroscopy [28,29], have been used for investigation of the air-drying process on alkyd resins or their liquid model systems (e.g. fatty acids esters).…”

Section: Introductionmentioning

confidence: 99%

Effect of primary driers on oxidative drying of high-solid alkyd binder: Investigation of thickness effects by mechanical tests and infrared spectroscopy

Charamzová

Vinklárek

Honzı́ček

2018

Progress in Organic Coatings

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Catalytic activity of four primary driers was investigated in high-solid alkyd binder modified with tall oil fatty acids. The drying activity was established by mechanical tests. Infrared spectroscopy was used for detailed investigation of chemical changes during the autoxidation process. Due to strong thickness effect, the infrared 2 study was performed using attenuated total reflectance (ATR) technique, which measures spectra of a thin layer from the interface sample/ATR crystal (down surface of the sample). Coatings of 30 µm-wet thickness were found to be enough thin to be considered as a homogenously dried bulk with negligible effect of oxygen diffusion. It makes the 30 µm-layers very suitable for determination of kinetic parameters of the autoxidation process. For the first time, ATR-IR experiments on several samples of the same composition but different film thickness were used for detailed investigation of the thickness effect. Two well-distinguished modes of film-formation were observed in studied drier/binder systems. Front frontforming drying occurs when the autoxidation is fast and air-oxygen diffusion is slower than its consumption. In extreme case, the film-formation process is practically ceased because impermeable skin is formed and the coating is not through-dried for very long time. The second mode, homogenous drying, is observed when autoxidation is slow and oxygen consumption is not fast enough to establish oxygen gradient in the coating.

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Section: Introductionmentioning

confidence: 99%

Effect of primary driers on oxidative drying of high-solid alkyd binder: Investigation of thickness effects by mechanical tests and infrared spectroscopy

Charamzová

Vinklárek

Honzı́ček

2018

Progress in Organic Coatings

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“…Sunflower FAMEs were chosen since the composition in linoleic (57%) and oleic acid (30%) constitute an ideal binary mixture in point of view of their oxidation time [38]. Whereas both 1-Co(II) and 2-Fe(II) have a rather regular decrease in activity according to their concentration lowering, the phthalocyanine-like 4-Fe(III) complex keeps a very good one from 12.5 mM to at least 2.5 mM.…”

Section: Catalysts Activities On Sunflower Fames Oxidationmentioning

confidence: 99%

Oxidative drying properties of a helmet pentadentate phthalocyanine-derived iron(III) complex

Dubrulle

Lebeuf

Nardello‐Rataj

2019

Progress in Organic Coatings

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“…The relative average amounts of fatty acids in the three oils were based on previously published data 33 . Pure triglycerides and methyl esters have been widely exploited in the literature to model the autoxidation of vegetable oils and lipids in general [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] .…”

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confidence: 99%

A versatile method to fingerprint and compare the oxidative behaviour of lipids beyond their oxidative stability

Pizzimenti

Bernazzani

Duce

et al. 2023

Sci Rep

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In this work we propose the use of isothermal thermogravimetry to evaluate the oxidative stability of a lipid and to evaluate how the glyceride composition affects the entire oxidative process, to quantify the oxidation undertaken by the lipid, and numerically compare the oxidative behaviour of different lipids. The innovative aspect of the present method lies in the acquisition of a prolonged “oxygen uptake” curve (4000–10,000 min) of a lipid under oxygen and in the development of a semi-empirical fitting equation for the experimental data. This provides the induction period (oxidative stability), and allows to evaluate the rate of oxidation, the rate and the magnitude of oxidative degradation, the overall mass loss and the mass of oxygen taken by the lipid upon time. The proposed approach is used to characterize the oxidation of different edible oils with different degrees of unsaturation (linseed oil, sunflower oil, and olive oil) as well as chemically simpler compounds used in the literature to model the autoxidation of vegetable oils and lipids in general: triglycerides (glyceryl trilinolenate, glyceryl trilinoleate and glyceryl trioleate) and methyl esters (methyl linoleate and methyl linolenate). The approach proves very robust and very sensitive to changes in the sample composition.

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Optimization of the vegetable oil composition in alkyd resins: A kinetic approach based on FAMEs autoxidation

Cited by 7 publications

References 31 publications

Effect of primary driers on oxidative drying of high-solid alkyd binder: Investigation of thickness effects by mechanical tests and infrared spectroscopy

Effect of primary driers on oxidative drying of high-solid alkyd binder: Investigation of thickness effects by mechanical tests and infrared spectroscopy

Oxidative drying properties of a helmet pentadentate phthalocyanine-derived iron(III) complex

A versatile method to fingerprint and compare the oxidative behaviour of lipids beyond their oxidative stability

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