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Title: Friction- and Wear-Reducing Properties of Multifunctional Small Molecules

Nitrogen- and oxygen-containing compounds were designed empirically and subsequently synthesized, and their rheology, friction, and wear performance as multifunctional base oils (MFBOs) were evaluated. Two of the compounds displayed good viscosity/rheology profiles without the addition of polymeric viscosity modifiers, displaying high viscosity indexes (VIs) above 200. Furthermore, all three MFBOs had lower coefficients of friction compared to well-established and accepted benchmarks. The most significant advancement is their impressive wear improvement by a factor of 5.5 to 70 compared to either of the benchmarks, which is attributed to the polar nature of the base oil which promotes boundary lubrication with metal surfaces. Moreover, these compounds were easily synthesized in one step from commercial starting materials. In conclusion, this work demonstrates that a careful design could provide the features/performance/functions of base oil, rheology modifiers (or VI improvers), and antiwear and friction-reducing additives, all-in one molecule.
Authors:
ORCiD logo [1] ;  [2] ;  [1] ;  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Nitrogen containing; anti-wear; base oils; friction modifiers; hexahydrotriazine; polyesters
OSTI Identifier:
1481747

Cosimbescu, Lelia, Demas, N. G., Robinson, J. W., and Erck, R. A.. Friction- and Wear-Reducing Properties of Multifunctional Small Molecules. United States: N. p., Web. doi:10.1021/acsami.7b13271.
Cosimbescu, Lelia, Demas, N. G., Robinson, J. W., & Erck, R. A.. Friction- and Wear-Reducing Properties of Multifunctional Small Molecules. United States. doi:10.1021/acsami.7b13271.
Cosimbescu, Lelia, Demas, N. G., Robinson, J. W., and Erck, R. A.. 2017. "Friction- and Wear-Reducing Properties of Multifunctional Small Molecules". United States. doi:10.1021/acsami.7b13271. https://www.osti.gov/servlets/purl/1481747.
@article{osti_1481747,
title = {Friction- and Wear-Reducing Properties of Multifunctional Small Molecules},
author = {Cosimbescu, Lelia and Demas, N. G. and Robinson, J. W. and Erck, R. A.},
abstractNote = {Nitrogen- and oxygen-containing compounds were designed empirically and subsequently synthesized, and their rheology, friction, and wear performance as multifunctional base oils (MFBOs) were evaluated. Two of the compounds displayed good viscosity/rheology profiles without the addition of polymeric viscosity modifiers, displaying high viscosity indexes (VIs) above 200. Furthermore, all three MFBOs had lower coefficients of friction compared to well-established and accepted benchmarks. The most significant advancement is their impressive wear improvement by a factor of 5.5 to 70 compared to either of the benchmarks, which is attributed to the polar nature of the base oil which promotes boundary lubrication with metal surfaces. Moreover, these compounds were easily synthesized in one step from commercial starting materials. In conclusion, this work demonstrates that a careful design could provide the features/performance/functions of base oil, rheology modifiers (or VI improvers), and antiwear and friction-reducing additives, all-in one molecule.},
doi = {10.1021/acsami.7b13271},
journal = {ACS Applied Materials and Interfaces},
number = 1,
volume = 10,
place = {United States},
year = {2017},
month = {12}
}