High temperature lubricants for magnetic media having aromatic linker moiety

Abstract

A lubricant for magnetic media according to general formula (I): Rv1-Rb1—Re1-Rc-Re2—Rb2-Rv2  (I); where Rc is an optionally non-fluorinated divalent linking segment comprising a first at least one anchoring functional group engageable with a protective overcoat of a magnetic recording medium; where each Re1 and Re2 has a rotational energy barrier that is greater than the rotational energy barrier of CH2; where each Rb1 and Rb2 independently is a chain segment comprising at least one of a fluoroalkyl ether moiety, a fluoroalkenyl ether moiety, a perfluoroalkyl ether moiety, a perfluoroalkenyl ether moiety, or a combination thereof; and where each of Rv1 and Rv2, when present, independently each has a second at least one anchoring functional group engageable with the protective overcoat of a magnetic recording medium. —Re1-Rc-Re2 may have the formula: where RL, if present, is CnM2, wherein M is H, and n is from 1 to 10.

Dependencies are inferred from the claim text.