Highly branched polyethylenes as lubricant viscosity and friction modifiers

Robinson, Joshua W.; Zhou, Yan; Qu, Jun; Bays, J. Timothy; Cosimbescu, Lelia

doi:10.1016/j.reactfunctpolym.2016.10.003

Title: Highly branched polyethylenes as lubricant viscosity and friction modifiers

Abstract

A series of highly branched polyethylene (BPE) were prepared and evaluated in a Group I base oil as potential viscosity and friction modifiers. The performance of these BPEs supports the expected dual functionality. Changes in polarity, topology, and molecular weight of the BPEs showed significant effects on the lubricants' performance with respect to viscosity index and friction reduction. In conclusion, this study provides scientific insights into polymer design for future lubricant development activities.

Authors:

Robinson, Joshua W. ^[1]; Zhou, Yan ^[2]; Qu, Jun ^[2]; Bays, J. Timothy ^[3]; Cosimbescu, Lelia ^[3]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States); USDA, Riverdale, MD (United States). Agricultural International Service
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:: Sat Oct 08 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: Work for Others (WFO); USDOE

OSTI Identifier:: 1329132

Alternate Identifier(s):: OSTI ID: 1397959

Grant/Contract Number:: AC05-00OR22725; 27573

Resource Type:: Accepted Manuscript

Journal Name:: Reactive and Functional Polymers

Additional Journal Information:: Journal Volume: 109; Journal Issue: C; Journal ID: ISSN 1381-5148

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; viscosity modifier; friction modifier; lubricant additive; highly-branched polyethylene; viscosity index improver

Citation Formats


                    Robinson, Joshua W., Zhou, Yan, Qu, Jun, Bays, J. Timothy, and Cosimbescu, Lelia. Highly branched polyethylenes as lubricant viscosity and friction modifiers.  United States: N. p., 2016. 
Web.  doi:10.1016/j.reactfunctpolym.2016.10.003.

Copy to clipboard


                    Robinson, Joshua W., Zhou, Yan, Qu, Jun, Bays, J. Timothy, & Cosimbescu, Lelia. Highly branched polyethylenes as lubricant viscosity and friction modifiers.  United States.  https://doi.org/10.1016/j.reactfunctpolym.2016.10.003

Copy to clipboard


                    Robinson, Joshua W., Zhou, Yan, Qu, Jun, Bays, J. Timothy, and Cosimbescu, Lelia. Sat .  
"Highly branched polyethylenes as lubricant viscosity and friction modifiers".  United States.  https://doi.org/10.1016/j.reactfunctpolym.2016.10.003.  https://www.osti.gov/servlets/purl/1329132.

Copy to clipboard


                    
@article{osti_1329132,

  title        = {Highly branched polyethylenes as lubricant viscosity and friction modifiers},

  author       = {Robinson, Joshua W. and Zhou, Yan and Qu, Jun and Bays, J. Timothy and Cosimbescu, Lelia},

  abstractNote = {A series of highly branched polyethylene (BPE) were prepared and evaluated in a Group I base oil as potential viscosity and friction modifiers. The performance of these BPEs supports the expected dual functionality. Changes in polarity, topology, and molecular weight of the BPEs showed significant effects on the lubricants' performance with respect to viscosity index and friction reduction. In conclusion, this study provides scientific insights into polymer design for future lubricant development activities.},

  doi          = {10.1016/j.reactfunctpolym.2016.10.003},

  journal      = {Reactive and Functional Polymers},

  number       = C,

  volume       = 109,

  place        = {United States},

  year         = {Sat Oct 08 00:00:00 EDT 2016},

  month        = {Sat Oct 08 00:00:00 EDT 2016}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.reactfunctpolym.2016.10.003

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 23 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

A review of recent developments of friction modifiers for liquid lubricants (2007–present)
journal, June 2014

Tang, Zhenglin; Li, Shaohui
Current Opinion in Solid State and Materials Science, Vol. 18, Issue 3
DOI: 10.1016/j.cossms.2014.02.002

How Polymers Behave as Viscosity Index Improvers in Lubricating Oils
journal, January 2015

Covitch, Michael J.; Trickett, Kieran J.
Advances in Chemical Engineering and Science, Vol. 05, Issue 02
DOI: 10.4236/aces.2015.52015

Reduction of Friction by Functionalised Viscosity Index Improvers
journal, October 2007

Fan, J.; Müller, M.; Stöhr, T.
Tribology Letters, Vol. 28, Issue 3
DOI: 10.1007/s11249-007-9272-3

A New Generation of High Performance Viscosity Modifiers Based on Comb Polymers
journal, October 2008

Stöhr, Torsten; Eisenberg, Boris; Müller, Michael
SAE International Journal of Fuels and Lubricants, Vol. 1, Issue 1
DOI: 10.4271/2008-01-2462

Hyperbranched polyethylenes by chain walking polymerization: synthesis, properties, functionalization, and applications
journal, January 2012

Dong, Zhongmin; Ye, Zhibin
Polym. Chem., Vol. 3, Issue 2
DOI: 10.1039/C1PY00368B

Chain Walking: A New Strategy to Control Polymer Topology
journal, March 1999

Guan, Z.
Science, Vol. 283, Issue 5410
DOI: 10.1126/science.283.5410.2059

Mechanistic Studies of the Palladium-Catalyzed Copolymerization of Ethylene and α-Olefins with Methyl Acrylate
journal, February 1998

Mecking, Stefan; Johnson, Lynda K.; Wang, Lin
Journal of the American Chemical Society, Vol. 120, Issue 5
DOI: 10.1021/ja964144i

Topology-Engineered Hyperbranched High-Molecular-Weight Polyethylenes as Lubricant Viscosity-Index Improvers of High Shear Stability
journal, February 2007

Wang, Jianli; Ye, Zhibin; Zhu, Shiping
Industrial & Engineering Chemistry Research, Vol. 46, Issue 4
DOI: 10.1021/ie0613624

New Pd(II)- and Ni(II)-Based Catalysts for Polymerization of Ethylene and .alpha.-Olefins
journal, June 1995

Johnson, Lynda K.; Killian, Christopher M.; Brookhart, Maurice
Journal of the American Chemical Society, Vol. 117, Issue 23
DOI: 10.1021/ja00128a054

Synthesis of Functional Olefin Copolymers with Controllable Topologies Using a Chain-Walking Catalyst
journal, May 2003

Chen, Guanghui; Ma, Xun S.; Guan, Zhibin
Journal of the American Chemical Society, Vol. 125, Issue 22
DOI: 10.1021/ja028921s

Hyperbranched−Linear Polyethylene Block Polymers Constructed with Chain Blocks of Hybrid Chain Topologies via One-Pot Stagewise Chain Walking Ethylene “Living” Polymerization
journal, October 2010

Xu, Yuanqing; Xiang, Peng; Ye, Zhibin
Macromolecules, Vol. 43, Issue 19
DOI: 10.1021/ma101490x

Synthesis and characterization of low- and medium-molecular-weight hyperbranched polyethylenes by chain walking ethylene polymerization with Pd–diimine catalysts
journal, October 2011

Xiang, Peng; Ye, Zhibin; Subramanian, Ramesh
Polymer, Vol. 52, Issue 22
DOI: 10.1016/j.polymer.2011.09.010

Newtonian Flow Behavior of Hyperbranched High-Molecular-Weight Polyethylenes Produced with a Pd−Diimine Catalyst and Its Dependence on Chain Topology
journal, April 2003

Ye, Zhibin; Zhu, Shiping
Macromolecules, Vol. 36, Issue 7
DOI: 10.1021/ma0340053

Dual functional star polymers for lubricants
journal, January 2016

Cosimbescu, Lelia; Robinson, Joshua W.; Zhou, Yan
RSC Advances, Vol. 6, Issue 89
DOI: 10.1039/C6RA17461B

Works referencing / citing this record:

Review of Viscosity Modifier Lubricant Additives
journal, March 2018

Martini, Ashlie; Ramasamy, Uma Shantini; Len, Michelle
Tribology Letters, Vol. 66, Issue 2
DOI: 10.1007/s11249-018-1007-0

Similar Records in DOE PAGES and OSTI.GOV collections:

Highly Branched Polyethylenes as Lubricant Viscosity and Friction Modifiers

Journal Article Robinson, Joshua W. ; Zhou, Yan ; Qu, Jun ; ... - Reactive and Functional Polymers

A series of highly branched polyethylenes (BPE) were prepared and used in a Group I base oil as potential viscosity and friction modifiers. The lubricating performance of these BPEs supports the expected dual functionality. Changes in polarity, topology, and molecular weight of the BPEs showed significant effects on the lubricants’ performance, which provide scientific insights for polymer design in future lubricant development.
https://doi.org/10.1016/j.reactfunctpolym.2016.10.003
Dual functional star polymers for lubricants

Journal Article Cosimbescu, Lelia ; Robinson, Joshua W. ; Zhou, Yan ; ... - RSC Advances

Star-shaped poly(alkyl methacrylate)s (PAMAs) with a three arm architecturewere designed, prepared and their performance as a dual additive (viscosity index improver and friction modifier) for engine oils was evaluated. Furthermore, the structure property relationships between the macromolecular structure and lubricant performance were studied, such as molecular weight and polarity effects on the viscosity index. Several copolymers of dodecylmethacrylate with polar methacrylates in various amounts and various topologies, were synthesized as model compounds. Star polymers with a polar content of at least 10% in a block or tapered block topology effectively reduced the friction coefficient in both mixed and boundary lubricationmore »« less
Cited by 23
https://doi.org/10.1039/C6RA17461B

Full Text Available
Dual Functional Star Polymers for Lubricants

Journal Article Cosimbescu, Lelia ; Robinson, Joshua W. ; Zhou, Yan ; ... - RSC Advances

Star-shaped poly(alkyl methacrylate)s (PAMAs) with a 3-arm architecture were designed, prepared and their performance as a dual additive (viscosity index improver and friction modifier) for engine oils was evaluated. Furthermore, the structure-property relationships between macromolecular structure and lubricant performance were studied. Several co-polymers of dodecylmethacrylate with polar methacrylates in various amounts and various topologies, were synthesized as model compounds. Star polymers with a polar content of at least 10% effectively reduced the friction coefficient in both mixed and boundary lubrication regime only in block or tapered block topology. However, a polar content of 20% was efficient in reducing friction inmore » both random and block topologies.« less
https://doi.org/10.1039/C6RA17461B
Probing the molecular design of hyper-branched aryl polyesters towards lubricant applications

Journal Article Robinson, Joshua W. ; Zhou, Yan ; Bhattacharya, Priyanka ; ... - Scientific Reports

We report novel polymeric materials that may be used as viscosity index improvers (VII) for lubricant applications. Our efforts included probing the comb-burst hyper-branched aryl polyester architecture for beneficial viscosity and friction behavior when utilized as an additive in a group I oil. The monomer was designed as to undergo polymerization via polycondensation within the architectural construct (AB2), typical of hyperbranched polymers. The monomer design was comprised of aliphatic arms (12 or 16 methylenes) to provide the necessary lipophilicity to achieve solubility in a non-polar medium. Once polymerized, via catalyst and heat, the surface alcohols were functionalized with fatty acidsmore »« less
https://doi.org/10.1038/srep18624
Probing the molecular design of hyper-branched aryl polyesters towards lubricant applications

Journal Article Robinson, Joshua W. ; Zhou, Yan ; Bhattacharya, Priyanka ; ... - Scientific Reports

In this study, we report novel polymeric materials that may be used as viscosity index improvers (VII) for lubricant applications. Our efforts included probing the comb-burst hyper-branched aryl polyester architecture for beneficial viscosity and friction behavior when utilized as an additive in a group I oil. The monomer was designed as to undergo polymerization via polycondensation within the architectural construct (AB2), typical of hyperbranched polymers. The monomer design was comprised of aliphatic arms (12 or 16 methylenes) to provide the necessary lipophilicity to achieve solubility in a non-polar medium. Once polymerized, via catalyst and heat, the surface alcohols were functionalizedmore »« less
Cited by 20
https://doi.org/10.1038/srep18624

Full Text Available

Similar Records

Title: Highly branched polyethylenes as lubricant viscosity and friction modifiers

Abstract

Citation Formats

A review of recent developments of friction modifiers for liquid lubricants (2007–present) journal, June 2014

How Polymers Behave as Viscosity Index Improvers in Lubricating Oils journal, January 2015

Reduction of Friction by Functionalised Viscosity Index Improvers journal, October 2007

A New Generation of High Performance Viscosity Modifiers Based on Comb Polymers journal, October 2008

Hyperbranched polyethylenes by chain walking polymerization: synthesis, properties, functionalization, and applications journal, January 2012

Chain Walking: A New Strategy to Control Polymer Topology journal, March 1999

Mechanistic Studies of the Palladium-Catalyzed Copolymerization of Ethylene and α-Olefins with Methyl Acrylate journal, February 1998

Topology-Engineered Hyperbranched High-Molecular-Weight Polyethylenes as Lubricant Viscosity-Index Improvers of High Shear Stability journal, February 2007

New Pd(II)- and Ni(II)-Based Catalysts for Polymerization of Ethylene and .alpha.-Olefins journal, June 1995

Synthesis of Functional Olefin Copolymers with Controllable Topologies Using a Chain-Walking Catalyst journal, May 2003

Hyperbranched−Linear Polyethylene Block Polymers Constructed with Chain Blocks of Hybrid Chain Topologies via One-Pot Stagewise Chain Walking Ethylene “Living” Polymerization journal, October 2010

Synthesis and characterization of low- and medium-molecular-weight hyperbranched polyethylenes by chain walking ethylene polymerization with Pd–diimine catalysts journal, October 2011

Newtonian Flow Behavior of Hyperbranched High-Molecular-Weight Polyethylenes Produced with a Pd−Diimine Catalyst and Its Dependence on Chain Topology journal, April 2003

Dual functional star polymers for lubricants journal, January 2016

Review of Viscosity Modifier Lubricant Additives journal, March 2018

A review of recent developments of friction modifiers for liquid lubricants (2007–present)
journal, June 2014

How Polymers Behave as Viscosity Index Improvers in Lubricating Oils
journal, January 2015

Reduction of Friction by Functionalised Viscosity Index Improvers
journal, October 2007

A New Generation of High Performance Viscosity Modifiers Based on Comb Polymers
journal, October 2008

Hyperbranched polyethylenes by chain walking polymerization: synthesis, properties, functionalization, and applications
journal, January 2012

Chain Walking: A New Strategy to Control Polymer Topology
journal, March 1999

Mechanistic Studies of the Palladium-Catalyzed Copolymerization of Ethylene and α-Olefins with Methyl Acrylate
journal, February 1998

Topology-Engineered Hyperbranched High-Molecular-Weight Polyethylenes as Lubricant Viscosity-Index Improvers of High Shear Stability
journal, February 2007

New Pd(II)- and Ni(II)-Based Catalysts for Polymerization of Ethylene and .alpha.-Olefins
journal, June 1995

Synthesis of Functional Olefin Copolymers with Controllable Topologies Using a Chain-Walking Catalyst
journal, May 2003

Hyperbranched−Linear Polyethylene Block Polymers Constructed with Chain Blocks of Hybrid Chain Topologies via One-Pot Stagewise Chain Walking Ethylene “Living” Polymerization
journal, October 2010

Synthesis and characterization of low- and medium-molecular-weight hyperbranched polyethylenes by chain walking ethylene polymerization with Pd–diimine catalysts
journal, October 2011

Newtonian Flow Behavior of Hyperbranched High-Molecular-Weight Polyethylenes Produced with a Pd−Diimine Catalyst and Its Dependence on Chain Topology
journal, April 2003

Dual functional star polymers for lubricants
journal, January 2016

Review of Viscosity Modifier Lubricant Additives
journal, March 2018