Lubricant and Fuel Additives Based on Polyalkylmethacrylates

Neveu, Christian D.; Sondjaja, Ronny; Stöhr, Torsten; Iroff, N.J.

doi:10.1016/b978-0-444-53349-4.00277-6

Cited by 15 publications

(12 citation statements)

References 21 publications

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“…Even if the aforementioned additives, essentially obtained from fossil feedstock (Cai et al, ; Neveu et al, ), fulfill the requirements in terms of viscosity tailoring, there is a growing demand for additives originated from renewable feedstock (Ghosh et al, , b; Ghosh and Karmakar, ; Karmakar and Ghosh, ). In this context, it is advantageous to investigate novel bio‐based polymers showing close chemical structures and/or comparable technical performances to the currently used fossil‐based polymeric VII.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Alkyl Sulfur‐Functionalized Oleic Acid‐Based Polymethacrylates and Their Application as Viscosity Index Improvers in a Mineral Paraffinic Lube Oil

Lomège

Négrell

Robin

et al. 2019

J Americ Oil Chem Soc

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This work describes the synthesis of alkyl sulfur‐functionalized polymethacrylate‐based Viscosity Index Improvers (VII) derived from oleic acid (OLA) for mineral paraffinic lubricating oils. In this strategy, OLA was first quantitatively ramified by alkyl thiols containing long aliphatic chains through thiol‐ene coupling as demonstrated by 1H NMR spectroscopy with the complete consumption of OLA internal double bonds. The resulting alkyl sulfur‐functionalized OLA‐based derivatives were methacrylated through Steglich esterification in order to afford highly suitable hydrophobic OLA‐based monomers which, as far as we know, have not been described yet in the current literature. High polymethacrylate molecular weights were reached through radical polymerization despite the long alkyl pendant chains contained in their backbones. Finally, the resulting alkyl sulfur‐functionalized OLA‐based polymethacrylates have been blended in a mineral paraffinic oil (MPO) of reference at 5 wt% and evaluated as VII. Rheological measurements revealed that polymer thickening powers were significantly improved in oil with temperature and promoted by increasing the pendant alkyl thiol contained in polymer backbones. Moreover, the viscosity index of MPO was significantly improved with the addition of both synthesized homopolymers which confirmed their efficiency as VII. In the meantime, these results have been compared with a previously reported polymer, the poly(2‐[methacryloyloxy]ethyl oleate) (PMAEO), which demonstrated a lower VII efficiency compared with its analogous polymethacrylates containing an additional alkyl chain in their pendant chains.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Alkyl Sulfur‐Functionalized Oleic Acid‐Based Polymethacrylates and Their Application as Viscosity Index Improvers in a Mineral Paraffinic Lube Oil

Lomège

Négrell

Robin

et al. 2019

J Americ Oil Chem Soc

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“…To ensure high effectiveness, the molecular weight characteristics of the polyalkyl (meth)acrylates and their composition -the ratio of acrylic and methacrylic units, the composition and content of alkyl fragments, and the presence and content of comonomer units of different nature -are varied. In particular, the introduction of nitrogen-containing comonomers (N,N-dialkylaminoethyl methacrylates, N-vinylpyrrolidone, amide and imide derivatives) is practised with the aim of imparting dispersing properties to thickening additives for oils [13][14][15] and increasing the effectiveness of action of additives in crude oils [16].…”

Section: Discussionmentioning

confidence: 99%

Additives for Petroleum Products, Based on Copolymers of Higher alkyl (meth)acrylates and N-alkylacrylamides

Sivokhin

Казанцев

Shirshin

et al. 2016

International Polymer Science and Technology

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“…It should also be noted that Neveu et al identified that polymers of a linear structure have a better thickening ability compared to similar branched polymers due to the presence of a larger number of possible conformations of chain macromolecules [14]. Poly (alkyl methacrylate) copolymers with different molecular weight and consisting of monomers with various functional groups have an antifriction effect owing to adsorption on the surface and forming a thin film in the boundary friction [8,15].…”

Section: Analysis Of Previous Studies and Statement Of The Problemmentioning

confidence: 99%

Obtaining of polymethacrylate additives and studying of operational properties of an alloyed industrial oil

Mysak

Kovalenko

Serdiuk

et al. 2016

EEJET

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Досліджено кінетику гомополімеризації лаурилметакрилату у бензолі. Одержано поліметакрилатні присадки кополімеризацією лаурилметакрилату з метилакрилатом у бензолі та досліджено їхні фізико-хімічні властивості. Показано вплив концентрації та складу присадки на реологічні властивості індустріальної оливи І-20А. Встановлено оптимальну концентрацію присадки в оливі І-20А, за якої покращуються в'язкісно-температурні, депресорні та протизношувальні властивості Ключові слова: лаурилметакрилат, метилакрилат, кінетика, поліметакрилатна присадка, легована індустріальна олива І-20А, експлуатаційні властивості Исследованa кинетикa гомополимеризации лаурилметакрилата в бензоле. Получены полиметакрилатные присадки путём сополимеризации лаурилметакрилата с метилакрилатом в бензоле и исследованы их физико-химические свойства. Показано влияние концентрации и состава присадки на реологические свойства индустриального масла И-20А. Установлена оптимальная концентрация присадки в масле И-20А, при которой улучшаются вязкостно-температурные, депрессорные и противоизносные свойстваКлючевые слова: лаурилметакрилат, метилакрилат, кинетика, полиметакрилатная присадка, легированное индустриальное масло И-20А, эксплуатационные свойства UDC 621.891

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Lubricant and Fuel Additives Based on Polyalkylmethacrylates

Cited by 15 publications

References 21 publications

Synthesis of Alkyl Sulfur‐Functionalized Oleic Acid‐Based Polymethacrylates and Their Application as Viscosity Index Improvers in a Mineral Paraffinic Lube Oil

Synthesis of Alkyl Sulfur‐Functionalized Oleic Acid‐Based Polymethacrylates and Their Application as Viscosity Index Improvers in a Mineral Paraffinic Lube Oil

Additives for Petroleum Products, Based on Copolymers of Higher alkyl (meth)acrylates and N-alkylacrylamides

Obtaining of polymethacrylate additives and studying of operational properties of an alloyed industrial oil

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