High- and low-viscosity estolide base oils and lubricants

摘要

Provided herein are compounds of the formula:;
in which n is an integer equal to or greater than 1; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R1, R3, and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched, wherein compositions comprising the compounds are characterized by particular combinations of values for estolide number, kinematic viscosity, and pour point. Also provided are compositions containing the compounds and methods of making both the compounds and compositions thereof.

主权项

1. A composition consisting essentially of at least one estolide compound, said composition having:
an EN that is an integer or fraction of an integer selected from 1.0 to 1.6, wherein the EN is the average number of estolide linkages in compounds according to Formula I; and a kinematic viscosity of about 4 cSt to about 10 cSt when measured at 100° C.,
wherein said at least one estolide compound is selected from compounds of Formula I: wherein x is, independently for each occurrence, an integer selected from 7 and 8; y is, independently for each occurrence, an integer selected from 0, 1, and 2; n is an integer selected from 0 to 4; R1 is an unsubstituted C7 to C17 alkyl that is saturated and branched or unbranched; and R2 is an unsubstituted C1 to C18 alkyl that is saturated or unsaturated, and branched or unbranched, wherein each fatty acid chain residue of said at least one estolide compound is unsubstituted.