Study on alkylated Schiff base of a triazole with 3, 5-di-tert-butyl-4-hydroxybenzaldehyde as a novel multifunctional lubricant additive

Faujdar, Ekta; Singh, Raj K.

doi:10.1016/j.fuel.2021.121158

Cited by 6 publications

(4 citation statements)

References 32 publications

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“…22 Some efforts have been made previously towards the successful coupling of the triazole and hindered phenolic groups to reflect the antioxidant, anticorrosion, anti-wear and antifriction properties. 23 Several kinds of efforts have been made in previous studies to introduce engine cleanliness properties, antioxidant and anticorrosion properties, along with the VII and PPD properties. In the recent study, poly(alkyl acrylate-co-maleic anhydride)amide based three novel multifunctional additives were reported to reveal the VII, PPDs, anti-wear, antifriction, detergent-dispersant and anticorrosion characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…Study on the histidine Schiff base esters have been reported to successful incorporation of the oxygen and nitrogen moieties to reflects the multifunctional characteristics 22 . Some efforts have been made previously towards the successful coupling of the triazole and hindered phenolic groups to reflect the antioxidant, anticorrosion, anti‐wear and antifriction properties 23 …”

Section: Introductionmentioning

confidence: 99%

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Studies on the application of poly(acrylate‐co‐maleic anhydride) amides with N‐phenyl‐p‐phenylenediamine as multifunctional lube additives

Faujdar

Singh

2022

J of Applied Polymer Sci

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Three polymeric amides were developed by utilizing three acrylates of alkyl chain C‐8, C‐12 and C‐18 and maleic anhydride via polymerization pathway followed by successful coupling with N‐phenyl‐p‐phenylenediamine to give poly(Ac8‐co‐MA)PPA, poly(Ac12‐co‐MA)PPA and poly(Ac18‐co‐MA)PPA. After successful molecular identification, application as lubricant additives as viscosity index improver, pour point depressants, deposit control agents and anticorrosion was done in polyol based synthetic lube oil. A rheological study was also carried out. For comparative performance evaluation, the commercial additives were also taken. Because of the diphenyl moiety in the molecular structure, additives showed the DPPH (2,2‐diphenyl‐1‐picrylhydrazyl) radical scavenging activity. Poly(Ac18‐co‐MA)PPA additive at a high concentration of 5000 ppm, the viscosity index increased from 179 to 217 while the pour point decreased from −18 to −30°C. As far as the detergent dispersant property is concerned, poly(Ac18‐co‐MA) reduced the coking value from 87.5 to 13.2 mg, while % dispersancy increased from 20% to 42%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studies on the application of poly(acrylate‐co‐maleic anhydride) amides with N‐phenyl‐p‐phenylenediamine as multifunctional lube additives

Faujdar

Singh

2022

J of Applied Polymer Sci

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“…Multifunctional additives are designed to balance performance with structural attribution es. Some efforts have been made towards the synthesis of heterocyclic compounds such as triazoles based multifunctional additives free from SAPS (sulfated ash, phosphorus, and sulfur) 12 . Many attempts have been made in the direction of modification in boron and molybdenum‐based compounds (molybdenum‐containing mercaptotriazine and difluoroboron derivatives of a diphenylamine) provide reaction sites and introduce multifunctionality due to the availability of polar groups 13,14 .…”

Section: Introductionmentioning

confidence: 99%

“…Some efforts have been made towards the synthesis of heterocyclic compounds such as triazoles based multifunctional additives free from SAPS (sulfated ash, phosphorus, and sulfur). 12 Many attempts have been made in the direction of modification in boron and molybdenum-based compounds (molybdenum-containing mercaptotriazine and difluoroboron derivatives of a diphenylamine) provide reaction sites and introduce multifunctionality due to the availability of polar groups. 13,14 Borated PIBSI is a widely used commercial multifunctional additive to demonstrate dispersancy, anti-oxidant and anti-wear activities.…”

Section: Introductionmentioning

confidence: 99%

Amide polymers based on N‐phenyl‐p‐phenylenediamine with α‐olefins‐co‐maleic anhydride as multifunctional additives for lubricant application

Faujdar

Singh

2022

Polymers for Advanced Techs

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The high temperature and harsh oxidizing conditions in engine sump results in sludge and varnish deposits in the engine, due to which wear debris and corrosion developed in the internal parts of the engine. This is also responsible for the increased oil viscosity. To address these problems, four polymeric multifunctional amides of N‐phenyl‐p‐phenylenediamine were synthesized from copolymer intermediates poly(α‐olefins‐co‐maleic anhydride) having C‐12, C‐14, C‐16, and C‐18 chain length. This article describes the systematic study of poly(α‐olefin‐co‐maleic anhydride)amides chemistry as multifunctional lubricant additives. Molecular elucidation was carried out by Fourier transform infrared and nuclear magnetic resonance while molecular weight and thermal stability were measured by gel permeation chromatography and thermogravimetric analysis. Standard methods were used to analyze the viscosity‐temperature relationship along with detergent‐dispersant, anti‐oxidant, and anti‐corrosion activities in reference base oil at varying concentration levels. All the prepared polymer compounds effectively addressed the concern problems, but poly(octadecene‐co‐maleic anhydride)amide of N‐phenyl‐p‐phenylenediamine showed better performance over the other additives due to the increased solubility. The pour point depressed from the base value −15 to −30°C while viscosity index (VI) increased to 197 from 178 with longer chain additive at 5000 ppm concentration. Dispersancy was found to be increased by 145%, while as far detergency was concerned, sludge deposition was reduced to 20.1 mg from 87.5 mg base value of reference base oil at 5000 ppm. 2,2‐diphenyl‐1‐picrylhydrazyl assay was used to determine the anti‐oxidant activity and at 1000 ppm, long alkylated polymer shows the excellent result by increasing the inhibition efficiency by 95.58% while the same additive impart the best results at 5000 ppm by reducing the corrosion and penetration rate by 75.80% and 75.43% respectively. Rheology also studied to examine the shear and temperature effect on the dynamic viscosity of the reference oil.

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On-line Raman spectroscopy combined with multivariate curve resolution-alternating least squares (MCR-ALS) to investigate the synthesis mechanism of 3,5-diamino-1,2,4-triazole (DAT)

Han

Guo

et al. 2023

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Study on alkylated Schiff base of a triazole with 3, 5-di-tert-butyl-4-hydroxybenzaldehyde as a novel multifunctional lubricant additive

Cited by 6 publications

References 32 publications

Studies on the application of poly(acrylate‐co‐maleic anhydride) amides with N‐phenyl‐p‐phenylenediamine as multifunctional lube additives

Studies on the application of poly(acrylate‐co‐maleic anhydride) amides with N‐phenyl‐p‐phenylenediamine as multifunctional lube additives

Amide polymers based on N‐phenyl‐p‐phenylenediamine with α‐olefins‐co‐maleic anhydride as multifunctional additives for lubricant application

On-line Raman spectroscopy combined with multivariate curve resolution-alternating least squares (MCR-ALS) to investigate the synthesis mechanism of 3,5-diamino-1,2,4-triazole (DAT)

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