Synthesis of functional fluorinated polyhedral oligomeric silsesquioxane (“F-POSS”)
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsTimothy S. Haddad, Joseph M. Mabry, Sean Ramirez
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Abstract
A method of manufacturing a fluorinated polyhedral oligomeric silsesquioxane. The method for manufacture includes opening a single edge of a closed-cage F-POSS and bridging the opened, single edge with a sulfate group. The sulfate group is converted to a disilanol, which is then reacted with a functional dichlorosilane having an organic functional group comprising at least three carbon atoms.
Claims16
A method of manufacturing a fluorinated polyhedral oligomeric silsesquioxane (“F-POSS”) having a structure:
- where each Rf represents a nonreactive, fluorinated organic group, R1 represents a first monovalent organic group comprising at least two carbon atoms, and R2 represents hydrogen or a second monovalent organic group comprising at least two carbon atoms, the method comprising:
- opening a single edge of a closed-cage F-POSS;
- bridging the opened, single edge with a sulfate group;
- converting the sulfate group to a disilanol;
- and
- reacting the disilanol with a functional dichlorosilane, the dichlorosilane having an organic functional group comprising at least three carbon atoms.
A method of manufacturing a fluorinated polyhedral oligomeric silsesquioxane (“F-POSS”) having a structure:
- where each Rf represents a fluorinated alkyl group, R1 represents a first group having at least two carbon atoms, and R2 represents hydrogen or a second group comprising at least two carbon atoms, the method comprising:
- opening a single edge of a closed-cage F-POSS;
- bridging the opened, single edge with a sulfate group;
- converting the sulfate group to a disilanol;
- and
- reacting the disilanol with a functional dichlorosilane, the dichlorosilane having an organic functional group comprising at least three carbon atoms.
Dependencies are inferred from the claim text.