Thin film lubricant for advanced tribological performance of storage medium

A recording media, comprising:

• a substrate;
• a layer for recording information disposed on the substrate;
• a protective overcoat for protecting said layer, said overcoat comprising carbon;
• and
• a lubricant comprising
• a perfluoropolyether main chain having a first end and a second end;
• a hexa(trifluoromethylphenoxy)cyclotriphosphazene attached to said first end of perfluoropolyether main chain;
• a bonding enhancer attached to said second end of perfluoropolyether main chain for enhancing bonding to the overcoat;
• and
• said bonding enhancer selected from the group consisting of methacrylate, methyl methacrylate and glycidyl ether.

A recording media, comprising:

• a substrate;
• a layer for recording information disposed on the substrate;
• a protective overcoat for protecting the layer, said overcoat comprising carbon;
• and
• a lubricant comprising:
• a perfluoropolyether main chain having a first end and a second end;
• a hexa(trifluoromethylphenoxy)cyclotriphosphazene attached to said first end of perfluoropolyether main chain;
• a bonding enhancer attached to said second end of perfluoropolyether main chain for enhancing bonding on a carbon-containing overcoat;
• wherein
• said bonding enhancer is other than a single terminal alcohol group and provides increased capability of adhering the lubricant to the overcoat, compared with an otherwise identical lubricant terminating with a single alcohol group.