Aspects of the behavior of some pentaerythritol ester base synlubes for turbo-engines

Abstract

In this work a series of pentaerythritol esters have been synthesized. Dean Stark apparatus has been used to measure the water separated periodically as one of the resultants giving an indication about reaction progress. Elementary analyses, mean average molecular weight, i.r., viscosity, density and pour point have been determined for the prepared esters. Some physico-chemical behaviors and correlations have been deduced to characterize the prepared esters. Moreover, they shed the light on their suitability as base oils which may be used in formulations according to French Air specification 3514 (Nato 0–150) as compared with the commercial oil sample (Trubonycoil 13B) used in this respect.