Highly branched polyethylenes as lubricant viscosity and friction modifiers

doi:10.1016/j.reactfunctpolym.2016.10.003

Title: Highly branched polyethylenes as lubricant viscosity and friction modifiers

Full Record
Other Related Research

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:: 2016-10-08

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.  doi: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.  doi: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         = {2016},

  month        = {10}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1016/j.reactfunctpolym.2016.10.003

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

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.
DOI: 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 1
DOI: 10.1039/C6RA17461B

Full Text Available
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
Cited by 2
DOI: 10.1038/srep18624

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
DOI: 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
DOI: 10.1038/srep18624

Similar Records