Enhanced bonding of phosphoric and phosphoric acids to oxidized substrates
AssigneeThe Trustees of Princeton University
InventorsJeffrey Schwartz, Ellen Gawalt, Michael Avaltroni
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Abstract
Ligand-containing coating layers on the surface of hydroxide-bearing substrates comprising transition metal atoms selected from the group consisting of Group IVB, Group VB and Group VIB of the Periodic Chart covalently bonded to the surface hydroxyls of said substrate, wherein each transition metal atom is further covalently bonded to one or more ligands of said coating layer, thereby covalently bonding said coating layer to said substrate. Disclosed ligands include inorganic phosphates and organic phosphonates.
Claims13
A coating layer formed on and covalently bonded to the surface of a hydroxide-bearing substrate, said coating layer comprising transition metal atoms selected from the group consisting of Group IVB, Group VB and Group VIB of the Periodic Chart which have been covalently bonded to said substrate surface by reaction of a poly alkoxide of said transition metal with the hydroxyl groups of the hydroxide-bearing substrate, wherein each transition metal atom additionally has covalently bonded to it one or more ligands of said coating layer, said ligands being further characterized in that they are selected from the group consisting of phosphates and phosphonates.
Dependencies are inferred from the claim text.