&lt;b&gt;Ethylmethyldioxirane epoxidation of &lt;i&gt;Plukenetia cononophora&lt;/i&gt; oil&lt;/b&gt;

Akintayo, E. T.

doi:10.4314/bcse.v21i1.61379

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…In 2007, Akintayo reported complete conversion of the double bond in the epoxidation of Plukenetia conophora oil (Akintayo, 2007). Epoxidation of methyl oleate and methyl ricinoleate were reported by Sonnet affording the corresponding epoxides in excellent yield (Sonnet and Foglia, 1996).…”

Section: Dioxiranesmentioning

confidence: 99%

“…In general, vegetable oils possess most of the necessary lubricity properties such as good contact lubrication, high viscosity index (lowest changes in viscosity with temperature), high flash point and low volatility. Above all, the presence of a high degree of unsaturation in vegetable oils led to low thermal and oxidative stability, which can be improved by epoxidation (Akintayo, 2007).…”

Section: Lubricantmentioning

confidence: 99%

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Modification of olefinic double bonds of unsaturated fatty acids and other vegetable oil derivatives via epoxidation: A review

et al. 2017

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SUMMARY:The highly strained ring in epoxides makes these compounds very versatile intermediates. Epoxidized vegetable oils are gaining a lot of attention as renewable and environmentally friendly feedstock with various industrial applications such as plasticizers, lubricant base oils, surfactants, etc. Numerous papers have been published on the development of the epoxidation methods and the number is still growing. This review reports the synthetic approaches and applications of epoxidized vegetable oils. KEYWORDS: Epoxidation; Renewable feedstock; Unsaturated fatty acids; Vegetable Oils RESUMEN:Modificación del doble enlace olefínico en ácidos grasos insaturados y en derivados de aceites vegetales via epoxidación: Revisión. La alta tensión del anillo en los epóxidos hace que estos compuestos intermediarios sean muy versátiles. Los aceites vegetales epoxidados están ganando mucha atención como materia prima renovable y respetuosa con el medio ambiente con diversas aplicaciones industriales, tales como plastificantes, aceites base para lubricantes, tensioactivos, etc. Por esta razón, se han publicado numerosos trabajos sobre el desarrollo de métodos de epoxidación y el número todavía es creciente. Esta revisión aporta información sobre enfoques sintéticos y aplicaciones de aceites vegetales epoxidados.

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Section: Dioxiranesmentioning

confidence: 99%

Section: Lubricantmentioning

confidence: 99%

Modification of olefinic double bonds of unsaturated fatty acids and other vegetable oil derivatives via epoxidation: A review

et al. 2017

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“…They used equations obtained from frequency of absorption bands of oils and composition data to predict the proportion of saturated, monounsaturated and polyunsaturated acyl groups in oil and lard. Akintayo (2007) and Akintayo et al (2015) employed FTIR spectroscopy in characterizing vegetable oils and their derivatives using the absorption frequencies to confirm the success of conversions.…”

Section: Introductionmentioning

confidence: 99%

Effect of sonication at different ultrasonic frequencies on the quality and quantity of fatty acids of the oil of Chlorella vulgaris

Olubunmi¹

2017

Sci. Res. Essays

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In order to investigate the effect of sonication on the fatty acids of alga oil, oil of Chlorella vulgaris was extracted by sonication at 20, 40, 60 and 80 kHz. Oil extracted by refluxing alga cells in n-hexane was used as control. Probable changes in the structures of the fatty acids were investigated using gas chromatography and Fourier transform infrared spectroscopy (FT-IR). The retention profiles of the chromatograms were similar with differences observed only in peak heights. The FT-IR spectrum of the hexane extract was similar to the spectra of oil extracted at 20 and 40 kHz. The FT-IR spectra of oil extracted at 60 and 80 kHz were identical but different from the other spectra. Peaks at about 1560 cm -1 which were prominent in the 60 and 80 kHz spectra but absent from the other spectra were assigned to non-oil lipids such as steroids. It was concluded that extraction of oil from C. vulgaris by sonication at 20, 40, 60 and 80 kHz had no degradative effect on the structure of the fatty acids of C. vulgaris.

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Comparison of curing agents for epoxidized vegetable oils applied to composites

et al. 2011

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Interest in polymers from renewable sources, as alternatives to petroleum‐based polymers, remains strong; however, their performance must be acceptable. To improve performance of epoxidized vegetable oils (EVO) in composite matrix applications, five amine curing agents were evaluated and compared with an anhydride agent used previously. Curing agents were tested in matrices for composites containing a petroleum‐based epoxy resin plus 0% or 30% epoxidized oil from canola (ECO) and soybean (ESO). The two amines with the highest glass transition temperature, determined by differential scanning calorimetry, were selected for characterization by dynamic mechanical analysis; bis (p‐aminocyclohexyl) methane (PACM) showed the highest performance. Amine: epoxy ratios 0.6 to 1.6 were then evaluated; ratios of 0.8 and 1.0 showed superior performance. E‐glass fiber reinforced composites with PACM/EVO showed thermal and mechanical performance slightly lower than the composites with 0% EVO and comparable with those of the anhydride curing agent. Therefore, ECO or ESO blended with petroleum‐based epoxy resins cured with PACM are recommended for its application in E‐glass reinforced composites. POLYM. COMPOS., 2011. © 2011 Society of Plastics Engineers

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<b>Ethylmethyldioxirane epoxidation of <i>Plukenetia cononophora</i> oil</b>

Cited by 4 publications

References 15 publications

Modification of olefinic double bonds of unsaturated fatty acids and other vegetable oil derivatives via epoxidation: A review

Modification of olefinic double bonds of unsaturated fatty acids and other vegetable oil derivatives via epoxidation: A review

Effect of sonication at different ultrasonic frequencies on the quality and quantity of fatty acids of the oil of Chlorella vulgaris

Comparison of curing agents for epoxidized vegetable oils applied to composites

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