Lipophilic Polymethacrylate Ionic Liquids as Lubricant Additives

Bapat, Abhijeet P.; Erck, Robert; Seymour, Bryan T.; Zhao, Bin; Cosimbescu, Lelia

doi:10.1016/j.eurpolymj.2018.08.026

Title: Lipophilic Polymethacrylate Ionic Liquids as Lubricant Additives

Journal Article · Wed Aug 15 00:00:00 EDT 2018 · European Polymer Journal

DOI:https://doi.org/10.1016/j.eurpolymj.2018.08.026· OSTI ID:1493697

Bapat, Abhijeet P. ^[1]; Erck, Robert ^[2]; Seymour, Bryan T. ^[3]; Zhao, Bin ^[3]; Cosimbescu, Lelia ^[4]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Deakin Univ., Waurn Ponds, Vic (Australia
Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Despite the growing research field of polymeric ionic liquids used as materials for applications such as electrolytes and energy materials, catalysts, separation aides, and carbon materials, reports of lipophilic polymeric ionic liquids are essentially nonexistent. Oil-miscible single molecule ionic liquids (ILs) are reported to perform well as neat lubricants and as additives in lubricating base oils. In this work, methacrylate type ionic liquid (IL) monomers containing ammonium or imidazolium cations and two different counter-anions were synthesized and used as co-monomers to obtain functional poly(alkyl methacrylates) (PAMAs) as viscosity index improvers (VII) additives for lubricants. The structure of the IL, including the cation, the anion, and the spacer’s length separating the IL from the methacrylate group, plays an important role in the resulting polymer solubility in PAO (poly-alpha olefin), solution rheology, and friction-and-wear behavior. Depending on the IL structure, VIIs containing up to 20 % mole IL are soluble in PAO (grade 4), and demonstrate friction-and-wear reduction, compared to a conventional oil-soluble PAMA. Notably, wear volume reduction of up to 80% compared to the oil-soluble control poly(dodecyl methacrylate) is observed.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)

Grant/Contract Number:: AC02-06CH11357; AC05-76RL01830

OSTI ID:: 1493697

Alternate ID(s):: OSTI ID: 1496562

Report Number(s):: PNNL-SA-134547; 146360

Journal Information:: European Polymer Journal, Vol. 108; ISSN 0014-3057

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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Data for: Lipophilic Polymethacrylate Ionic Liquids: Synthesis and Application Cosimbescu, Lelia https://doi.org/10.17632/yyfpng922w.1 The current record is supplemented by this dataset	dataset	January 2018
Data for: Lipophilic Polymethacrylate Ionic Liquids: Synthesis and Application Cosimbescu, Lelia https://doi.org/10.17632/yyfpng922w The current record is supplemented by this dataset	dataset	January 2018

Title: Lipophilic Polymethacrylate Ionic Liquids as Lubricant Additives

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