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

Lipophilic Polymethacrylate Ionic Liquids as Lubricant Additives

Journal Article · Wed Aug 15 04:00:00 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 electrolytes and energy materials, catalysts, separation aides, and carbon materials, reports of lipophilic polymeric ionic liquids for lubricants 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. Here in this work, methacrylate type ionic liquid monomers containing ammonium or imidazolium cations and two different counter-anions were synthesized and used as comonomers 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, friction, and wear behavior. Depending on the IL structure, VIIs containing up to 20 % mol IL are soluble in PAO (grade 4), and demonstrate frictionandwear 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.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

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

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1493697

Alternate ID(s):: OSTI ID: 1496562

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

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

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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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
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Lipophilic Polymethacrylate Ionic Liquids as Lubricant Additives

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