Phosphonic polymers having a phosphinate backbone and methods of making and using thereof
AssigneeUnichem Technologies, Inc.
InventorAtif M. Dabdoub
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Abstract
Described herein are new phosphonic polymers and methods of making and using the same. The polymers are prepared by the polymerization of phosphonic acid monomers with hypophosphorous acid, an alkali metal hypophosphite, an alkyl substituted hypophosphite, or any combination thereof. The resultant polymers have pendant phosphonate groups attached to the polymer backbone as well as phosphinate groups incorporated within the polymer backbone. Additional monomers can be used to produce copolymers, terpolymers, and the like. The polymers described herein have numerous applications with respect to inhibiting scale formation and corrosion in a number of systems.
Claims25
A polymer produced by the process comprising polymerizing a monomer comprising the formula I, a dimer comprising the formula IV, or a combination thereof
- wherein R1-R and R7 comprises, independently, hydrogen, an alkyl group, a cycloalkyl group, a heteroalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, a protecting group, or a combination thereof, or R2 and R4 form a substituted or unsubstituted cycloalkyl group, with hypophosphorous acid, an alkali metal hypophosphite, an alkyl substituted hypophosphite, or any combination thereof.
A method for producing a polymer comprising polymerizing a monomer comprising the formula I, a dimer comprising the formula IV, or a combination thereof
- wherein R1-R and R7 comprises, independently, hydrogen, an alkyl group, a cycloalkyl group, a heteroalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, a protecting group, or a combination thereof, or R2 and R4 form a substituted or unsubstituted cycloalkyl group, with hypophosphorous acid, an alkali metal hypophosphite, or a combination thereof.
Dependencies are inferred from the claim text.