SYNTHESIS OF ETHYL ESTERS OF PHENYL- AND p-PHENYL SUBSTITUTED CYCLOPROPANECARBOXYLIC ACIDS AND THEIR CONVERSION

Guliyev, K. G.; Rzayeva, A. E.; Guliyev, A. M.

doi:10.32737/0005-2531-2021-1-11-17

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Oil-soluble polymers and copolymers of polyisobuthylenes, polyalkylmethacrylates and other vinyl monomers are used as viscosity additives [4][5][6][7]. However, these additives meet no requirements of modern techniques on resistance to destructive effects.…”

Section: Introductionmentioning

confidence: 99%

Copolymers of Caprylic Acid Allyl Ester with Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

Hamidova,

Kazimzadeh,

Hasanova

et al. 2023

Chemistry Africa

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The paper is focused on synthesis the double copolymers of allyl ester of caprylic acid with butyl methacrylate, styrene and ternary copolymer with butyl methacrylate and styrene as viscosity additives in lubricanting oils. MethodsThe structure of synthesized compounds was proved by studying their physicochemical properties by IR and NMR spectroscopy. The molecular weight and the molecular weight distribution (MWD) of the copolymers were determined on a high-performance liquid chromatography. Thermal analysis of the synthesized copolymers was carried out using a simultaneous thermal analysis unit. The viscosity index and kinematic viscosity of the oil with the test copolymers were determined according to the appropriate ASTM methods. ResultsIt has been established that the synthesized copolymers, having high viscosity-temperature, depressant properties, are effective viscosity additives that improve the thermal stability of mineral oils. ConclusionConditions for the copolymerization of binary and ternary copolymers by the radical mechanism in the presence of benzoyl peroxide as an initiator have been developed. By adjusting the proportion of monomers, it has been shown that the synthesized copolymers can be dissolved in both mineral and complex essential oils.

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Section: Introductionmentioning

confidence: 99%

Copolymers of Caprylic Acid Allyl Ester with Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

Hamidova,

Kazimzadeh,

Hasanova

et al. 2023

Chemistry Africa

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show abstract

“…The main goal of this study is to study the amount of flavonoid in the pollen of Amygdalus communis L., which is loved by bees. This plant, which blooms in early spring, is considered a rich source of food for bees due to its pollen and nectar (Guliyev, 2014).…”

Section: Introductionmentioning

confidence: 99%

Amygdalus communis L. Poleninde Flavonoid Miktarının Spektrofotometrik Analizi ve Biyomarkerların Belirlenmesi

HUSEYNOVA,

ALİ ALAKBARLI

2023

Journal of Apitherapy and Nature

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In this study, the amount of flavonoid aggregates in the pollen of the common almond (Amygdalus communis L.) plant, which is common in Nakhchivan MR, was analyzed. The study of flavonoids in flower pollen can provide useful information for assessing the nutritional and healing quality of bee products. In the study, an extract was prepared on 60% ethyl alcohol from the flower pollen of the common almond plant. For the determination of flavonoids, a solution of 2% aluminum chloride in alcohol and a standard rutin solution were used. Biochemical analysis was performed by spectrophotometer method. The determination of flavonoid concentration was determined by measuring their absorbance at a wavelength of 310 nm. Based on the absorption results of solutions of different concentrations of rutin, the dependence in the calibration graph is expressed by the equation Y=0.032x+0.477. The correlation coefficient was R=0.993. The optical density (Y) of common almond (A. communis L.) pollen extract in alcohol was calculated based on the equation given in the calibration graph and was determined to be 0.041±0.02 mg/mL flavonoid (according to rutin). As a result of spectrophotometric research, it was determined that the pollen of common almond (A. communis L.) contains 10.29±1.16% flavonoid aggregate.

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Copolymers of Caprylic Acid Allyl Ester With Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

Kazimzadeh

Hasanova

Isakov

et al. 2023

Preprint

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Purpose The paper is focused on synthesis the double copolymers of allyl ester of caprylic acid with butyl methacrylate, styrene and ternary copolymer with butyl methacrylate and styrene as viscosity additives in lubricanting oils. Methods The structure of synthesized compounds was proved by studying their physicochemical properties by IR and NMR spectroscopy. The molecular weight and the molecular weight distribution (MWD) of the copolymers were determined on a high-performance liquid chromatography. Thermal analysis of the synthesized copolymers was carried out using a simultaneous thermal analysis unit. The viscosity index and kinematic viscosity of the oil with the test copolymers were determined according to the appropriate ASTM methods. Results It has been established that the synthesized copolymers, having high viscosity-temperature, depressant properties, are effective viscosity additives that improve the thermal stability of mineral oils. Conclusion Conditions for the copolymerization of binary and ternary copolymers by the radical mechanism in the presence of benzoyl peroxide as an initiator have been developed. By adjusting the proportion of monomers, it has been shown that the synthesized copolymers can be dissolved in both mineral and complex essential oils.

show abstract

SYNTHESIS OF ETHYL ESTERS OF PHENYL- AND p-PHENYL SUBSTITUTED CYCLOPROPANECARBOXYLIC ACIDS AND THEIR CONVERSION

Cited by 3 publications

References 4 publications

Copolymers of Caprylic Acid Allyl Ester with Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

Copolymers of Caprylic Acid Allyl Ester with Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

Amygdalus communis L. Poleninde Flavonoid Miktarının Spektrofotometrik Analizi ve Biyomarkerların Belirlenmesi

Copolymers of Caprylic Acid Allyl Ester With Butyl Methacrylate and Styrene as a Viscosity Additive for Lubricanting Oils

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