title: Synthesis, characterization and physicochemical properties of oleic acid ether derivatives as biolubricant basestocks.
abstract: Petroleum is a finite source as well as causing several environmental problems. Therefore petroleum needs to be replaced by alternative and sustainable sources. Plant oils and oleochemicals derived from them represent such alternative sources; the use of oleochemicals as biobased lubricants is of significant interest. This article presents a series of chemical modification on oleic acid to yield synthetic biolubricant basestocks. Measuring of density, volatility, cloud point (CP), pour point (PP), flash point (FP), viscosity index (VI), onset temperature (OT) and signal maximum temperature (SMT) was carried out for each compound. Furthermore, the friction and wear properties were measured using high-frequency reciprocating rig (HFRR). The results showed that octadecyl 9-octadecyloxy-10-hydroxyoctadecanoate exhibited the most favorable low-temperature performance (CP %ndash;26°C, PP %ndash;28°C) and the lowest ball wear scan diameter (42 µm) while propyl 9-propyloxy-10-hydroxyoctadecanoate exhibited the higher oxidation stability (OT 156°C).
authors: School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia. jumat@ukm.my
authors: Jumat
authors: J
authors: Salimon
authors: Nadia
authors: N
authors: Salih
authors: Emad
authors: E
authors: Yousif
mesh_terms: D002627:Chemistry, Physical; D004355:Drug Stability; D054327:Lubricants / Q000138:chemical synthesis / Q000737:chemistry; D019301:Oleic Acid / Q000138:chemical synthesis / Q000737:chemistry; D010084:Oxidation-Reduction; D010938:Plant Oils; D013696:Temperature
chemical_list: D054327:Lubricants; D010938:Plant Oils; D019301:Oleic Acid