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Synthesis and Lubricating Properties of Dimer Acid Derivatives Based on Used Vegetable Oil  

Lee, Sang Jun (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Kim, Young-Wun (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Yoo, Seung-Hyun (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Kim, Nam-Kyun (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Shin, Ji Hoon (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Yoon, Byung-Tae (Division of Convergence Chemistry, Industrial Bio-based Materials Research Group, Korea Research Institute of Chemical Technology)
Publication Information
Applied Chemistry for Engineering / v.24, no.5, 2013 , pp. 530-536 More about this Journal
Abstract
Vegetable oil-based dimer acid derivatives were prepared through a two-step procedure and their lubricating properties for diesel fuel were evaluated using high frequency reciprocating ring (HFRR) method to investigate wear scar diameter (WSD). Diels-Alder reaction at an elevated temperature transformed fatty acid to dimer acid, subsequently converted into dimer acid derivatives by esterification with methanol. It should be noted that the derivatives were dissolved well in diesel oil up to 1 wt%. After adding 120 ppm of the derivatives to pure diesel, the WSD significantly decreased to $300{\sim}05{\mu}m$, compared to $552{\mu}m$ of WSD in pure diesel. Dimer acid derivatives having carboxylic acid show superb in lubricating property which does not depend on the alkyl group in the derivatives.
Keywords
vegetable-based dimer acid; fuel lubricity improver; high frequency reciprocating ring;
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Times Cited By KSCI : 2  (Citation Analysis)
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