Synthesis and Performance Evaluation of Vinyl Acetate-Maleic Anhydride Based Polymeric Additives for Lubricating Oil

Ghosh, Pranab; Hoque, Mainul

doi:10.1080/10916466.2015.1049357

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…It is evident from Figure that the prepared HDPE and nanoclay HDPE waste are effective as pour point depressants for lubricating oil and the efficiency is reduced by increasing the doses of these prepared additives. It can be attributed to a decrease in the solvation power, and the solvation power of any solvent decreases with decreasing temperature and vice versa. − This decrease in solvation power becomes more obvious when the molecular weight of the solute and its concentration increases. The best performance is shown as pour point depressants at a concentration of 0.25%.…”

Section: Resultsmentioning

confidence: 99%

High-Density Polyethylene Waste (HDPE)-Waste-Modified Lube Oil Nanocomposites as Pour Point Depressants

et al. 2021

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Sustainability metrics have been established that cover the economic, social, and environmental aspects of human activities. Reduce, reuse, and recycle (3R) strategy targets solid waste management in the waste generation sectors. The purpose of this work is to study the possibility of using various plastic wastes containing high-density polyethylene (HDPE) and high-density polyethylene nanoclay (PMON) as polymer additives to modify lubricating oil. The structure of these additives was elucidated by Fourier transform infrared (FTIR) spectra, and the particle size of PMON was determined by dynamic light scattering (DLS). The thermal stability of HDPE and nanoclay HDPE (PMON) was studied, which showed higher thermal stability, and these additives completed degradation above 500 °C. The performance of HDPE and nanoclay HDPE (PMON) in lubricating oil was evaluated as pour point depressants by standard ASTM methods. The results showed that the efficiency of these additives increases with the decrease in the dose of these additives and lubricating oil treated with HDPE at 0.25% dosage lowers PPT to −30 °C, while lubricating oil treated with nanoclay HDPE (PMON7) at 0.25% dosage reduces PPT to −36 °C. Photomicrographic analysis was conducted to study accumulations and modifications in the wax crystal morphology in lube oil without and with HDPE and nanoclay HDPE (PMON7). Photomicrographs revealed that wax morphology changes due to effective pour point depressants on crystal growth.

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Section: Resultsmentioning

confidence: 99%

High-Density Polyethylene Waste (HDPE)-Waste-Modified Lube Oil Nanocomposites as Pour Point Depressants

et al. 2021

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“…Precipitation polymerization and solution polymerization have emerged as the dominant PMV synthesis techniques over the years that PMVs have been continuously studied by researchers. Ghosh et al, 1 Popa et al, 21 Peptu et al, 22 and Uglea et al 23 have attained the PMV products of viscosity‐average molecular weight ( M v ) 14,900–16,900, 100,000, 14,000, and 30,000–70,000 g/mol respectively using precipitation polymerization process. Notwithstanding, high content of cross‐linkers, low monomer concentration and manipulating special apparatus enormously limit the industrial applications of precipitation polymerization 24–26 .…”

Section: Introductionmentioning

confidence: 99%

“…Poly(maleic anhydride-alt-vinyl acetate) (PMV) is a type of known significant fine chemical product. Owing to the specific steric hindrance, maleic anhydride (MAH) can specifically construct alternating copolymers with vinyl acetate (VAc) with equimolar ratio of MAH to VAc in PMV chains 1 by charge transfer complex (CTC) effect. Over the past few decades, PMV has been extensively employed in the fields of biomedical, [2][3][4][5][6] blood dialysis 7 and immobilization of enzymes, 8 and so on.…”

Section: Introductionmentioning

confidence: 99%

Preparation, acidolysis kinetics and scale inhibition performance of low molecular weight poly(maleic anhydride‐alt‐vinyl acetate) based on self‐stabilized precipitation polymerization

Zhao

Yang

2023

J of Applied Polymer Sci

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Poly(maleic anhydride‐alt‐vinyl acetate) (PMV) is used as a fine chemical in the field of biomedical. However, the techniques of PMV preparation have shortcomings like limited yield (Yp), complex post‐treatment and toxic solvents. Herein self‐stabilized precipitation (2SP) technique which possessed advantages of simple operation and post‐processing, non‐toxic solvent, and surface‐cleaned product is adopted to synthesize low number‐average molecular weight (Mn) PMV by tune‐up of reaction parameters. PMV with Mn of 2800–39,200 g/mol are successfully achieved. Furthermore, acidolysis kinetics of PMV is investigated centering on effects of Mn, acidolysis temperature, and initial concentration. All samples can undergo completely ring‐opening and the equilibrium pH of acidolyzed PMV is related to initial concentration irrelevant to Mn and temperature. Carboxylic degree (CD) varying rate and time of reaching equilibrium pH and 100% CD are impacted by Mn and temperature irrelevant to initial concentration. Finally, scale inhibition effectiveness of PMV with 2800 g/mol can be up to 53.69%, larger than that of commercial citric acid by about three times. This contribution supplies an easily operational and eco‐friendly process to obtain low molecular weight PMV which can be the scale inhibitor for industry and daily life, providing the quantization basis for hydrophilic functionalization of PMV.

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Terpolymers based on sunflower oil/alkyl acrylate/styrene as sustainable lubricant additive

2016

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Synthesis and Performance Evaluation of Vinyl Acetate-Maleic Anhydride Based Polymeric Additives for Lubricating Oil

Cited by 7 publications

References 8 publications

High-Density Polyethylene Waste (HDPE)-Waste-Modified Lube Oil Nanocomposites as Pour Point Depressants

High-Density Polyethylene Waste (HDPE)-Waste-Modified Lube Oil Nanocomposites as Pour Point Depressants

Preparation, acidolysis kinetics and scale inhibition performance of low molecular weight poly(maleic anhydride‐alt‐vinyl acetate) based on self‐stabilized precipitation polymerization

Terpolymers based on sunflower oil/alkyl acrylate/styrene as sustainable lubricant additive

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