Dual functional star polymers for lubricants

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

doi:10.1039/C6RA17461B

Title: Dual functional star polymers for lubricants

Journal Article · Mon Sep 12 00:00:00 EDT 2016 · RSC Advances

DOI:https://doi.org/10.1039/C6RA17461B· OSTI ID:1330541

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

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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 lubrication regimes. Furthermore, a polar content of 20% was efficient in reducing friction in both random and block topologies.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: Work for Others (WFO); USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1330541

Journal Information:: RSC Advances, Vol. 6, Issue 89; ISSN 2046-2069

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 23 works

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A New Approach for the Synthesis of Miktoarm Star Polymers Through a Combination of Thiol–Epoxy “Click” Chemistry and ATRP/Ring‐Opening Polymerization Techniques Gadwal, Ikhlas; Wadgaonkar, Prakash P.; Ichake, Amol B. Journal of Polymer Science Part A: Polymer Chemistry, Vol. 57, Issue 2 https://doi.org/10.1002/pola.29278	journal	November 2018
Star‐shaped siloxane polymers with various cyclic cores: Synthesis and properties Vysochinskaya, Yulia S.; Anisimov, Anton A.; Peregudov, Alexander S. Journal of Polymer Science Part A: Polymer Chemistry, Vol. 57, Issue 11 https://doi.org/10.1002/pola.29380	journal	April 2019
TiO2@TDI@DMAPA: an amine-modified nanoparticle, tailored to act as an economic basic heterogeneous nanocatalyst Esfahanian, Farzane; Amoozadeh, Ali; Bitaraf, Mehrnoosh Journal of Nanoparticle Research, Vol. 20, Issue 6 https://doi.org/10.1007/s11051-018-4224-4	journal	May 2018

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36 MATERIALS SCIENCE
viscosity index improver
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polyalkylmethacrylate copolymer
star polymer
lubricant additive

Title: Dual functional star polymers for lubricants

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