Preparation and Evaluation of Acrylate Polymers as Viscosity Index Improvers for Lube Oil

Nassar, Amal M.; Ahmed, Nehal S.; Kamal, Rasha S.; Abdel‐Azim, Abdel‐Azim A.; El-Nagdy, E. I.

doi:10.1081/lft-200031097

Cited by 48 publications

(30 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In case of P-5 and P-10 (% of styrene 10), the molecular weight has increased but VI remain approximately same with P-4 and P-9 respectively. It may be due to higher PDI value and hence reduces the solubility (Nassar et al, 2005). The VI value is somewhat better in case of copolymers prepared by AIBN initiator than copolymers prepared by BZP initiator.…”

Section: Analysis Of Viscosity Index Datamentioning

confidence: 91%

Homo- and Copolymers of Decyl Methacrylate as Performance Additives for Lube Oil

Ghosh¹,

Hoque²,

Nandi³

2015

Petroleum Science and Technology

View full text Add to dashboard Cite

Homopolymer of decyl methacrylate and its copolymer with styrene at different concentrations using two types of initiators (benzoyl peroxide [BZP] and azobisisobutyronitrile [AIBN]) were synthesized. All the prepared polymers are characterized by FT-IR and NMR. The molecular weight was determined by gel permeation chromatography. The performance of the prepared polymers in different base oils were evaluated as viscosity modifier, also known as viscosity index improver and pour point depressant. The molecular weight of homopolymer prepared by using BZP initiator is higher than homopolymer prepared by using AIBN initiator but molecular weight of copolymers prepared by BZP are lower than copolymers prepared by AIBN initiator. The theromogravimetric analysis value of the prepared polymers was determined by standard ASTM method and it is found that the thermal stability of copolymers decrease with increasing the styrene content.

show abstract

Section: Analysis Of Viscosity Index Datamentioning

confidence: 91%

Homo- and Copolymers of Decyl Methacrylate as Performance Additives for Lube Oil

Ghosh¹,

Hoque²,

Nandi³

2015

Petroleum Science and Technology

View full text Add to dashboard Cite

show abstract

“…It may be due to low molecular weight of P-1 compared to others. The VI of copolymers increases with increasing the percentage of vinyl acetate which may be due to increase of molecular weight of the copolymers P-2 to P-6 [28]. The relation between molecular weights and VI values of the synthesized polymers are also compared with the copolymers of 2-ethylhexyl methacrylate and VA published previously [13] and mentioned in Table 3.…”

Section: Analysis Of Viscosity Index Datamentioning

confidence: 99%

Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil

et al. 2017

View full text Add to dashboard Cite

The article presents application of homo polymer of dodecyl methacrylate (DDMA) and its copolymers with vinyl acetate (VA) as multifunctional additives for lubricant formulation. Homo polymer of DDMA and five copolymers of DDMA with VA at different molar ratios were synthesized by free radical polymerization method using azobisisobutyronitrile (AIBN) as initiator. The characterization of the polymers was carried out through FTIR, NMR and GPC (gel permeable chromatography) analysis. The performance of all the polymers as viscosity index improver (VII) or viscosity modifier and pour point depressant (PPD) additive in two different base oils (mineral) were evaluated. The mechanism of action of the polymers as pour point depressant was studied by photo micrographic analysis. Rheological study of the formulated lubricant was also carried out and reported. The thermal stability of the polymers was determined by thermogravimetric analysis (TGA). It was found that thermal stability, VI and molecular weights of copolymers are higher than the homopolymer which showed better PPD property.

show abstract

“…They improve the overall performance of lubricants and prolong the lifetime of engines. Viscosity index improver (VII) , pour‐point depressants (PPD) , antiwear (AW) , antioxidant , detergent‐dispersant , emulsifiers, demulsifiers etc. are the types of additives commonly blended to the base fluids.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional greener additives for lubricating oil

Upadhyay

Karmakar

Kapur

et al. 2017

Polymer Engineering & Sci

View full text Add to dashboard Cite

In an anticipation to produce biodegradable additives with multifunctional performance for a cost-effective lubricant composition, copolymers are synthesized by incorporating rice bran oil, peanut oil, b-pinene in the backbone of isodecyl acrylate through microwave irradiation method using AIBN (azobisisobutyronitrile) as radical initiator. The prepared polymers are characterized by spectral techniques (IR, NMR) and SEC-GPC analysis, thermal stability was determined by thermogravimetric analysis. Performance of the polymers as antiwear (AW), pour point depressant (PPD), viscosity modifier/viscosity index improver (VII) in different mineral base oils (SN1 and SN2) were done by standard ASTM methods. Biodegradability test of the polymers was carried out by disk diffusion (DD) and soil burial test methods. The copolymers of rice bran oil showed better viscosity index values and AW property, whereas the copolymers of peanut oil found to be most effective as PPD. Copolymers with higher concentration of green units showed better performance as viscosity modifier, pour point depressant and AW performance along with excellent biodegradability. POLYM. ENG. SCI., 58:810-815, 2018.

show abstract

Preparation and Evaluation of Acrylate Polymers as Viscosity Index Improvers for Lube Oil

Cited by 48 publications

References 7 publications

Homo- and Copolymers of Decyl Methacrylate as Performance Additives for Lube Oil

Homo- and Copolymers of Decyl Methacrylate as Performance Additives for Lube Oil

Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil

Multifunctional greener additives for lubricating oil

Contact Info

Product

Resources

About