Acrylate based homo and copolymers as potential additives for lubricating oil

In the present work we prepared multifunctional additives for lubricating oil (lube oil) via the preparation of homopolymer of decyl acrylate (DA) and its copolymer with styrene and 1-decene. We studied the efficiency of the prepared compounds at different level of concentrations in lube oil as viscosity index improvers (VII), pour point depressants (PPD) and anti wear (AW) additives. Lube oil thickening property of the polymers, which is a direct measure of percent increase in the viscosity of the base stocks (lube oils) for addition of its unit amount of weight as well as an indicative of fuel economy, and the shear stability of the polymers in lube oil, which determines the stability of the polymer in field application (as an engine oil), has also been investigated and reported.